1616553026460 has 36 divisors (see below), whose sum is σ = 4903544180808. Its totient is φ = 431080807008.

The previous prime is 1616553026443. The next prime is 1616553026467. The reversal of 1616553026460 is 646203556161.

1616553026460 is a `hidden beast` number, since 1 + 6 + 16 + 553 + 0 + 26 + 4 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1616553026460² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616553026467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4490424894 + ... + 4490425253.

It is an arithmetic number, because the mean of its divisors is an integer number (136209560578).

Almost surely, 2^{1616553026460} is an apocalyptic number.

1616553026460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1616553026460 is an abundant number, since it is smaller than the sum of its proper divisors (3286991154348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616553026460 is a wasteful number, since it uses less digits than its factorization.

1616553026460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8980850162 (or 8980850157 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 1616553026460 in words is "one trillion, six hundred sixteen billion, five hundred fifty-three million, twenty-six thousand, four hundred sixty".