15455554890 has 32 divisors (see below), whose sum is σ = 37601464896. Its totient is φ = 4065022080.

The previous prime is 15455554867. The next prime is 15455554903. The reversal of 15455554890 is 9845555451.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3526476 + ... + 3530855.

It is an arithmetic number, because the mean of its divisors is an integer number (1175045778).

Almost surely, 2^15455554890 is an apocalyptic number.

15455554890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15455554890 is an abundant number, since it is smaller than the sum of its proper divisors (22145910006).

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

15455554890 is a wasteful number, since it uses less digits than its factorization.

15455554890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7057414.

The product of its (nonzero) digits is 3600000, while the sum is 51.

The spelling of 15455554890 in words is "fifteen billion, four hundred fifty-five million, five hundred fifty-four thousand, eight hundred ninety".