61005101010550 has 48 divisors (see below), whose sum is σ = 113559208308000. Its totient is φ = 24382748390400.

The previous prime is 61005101010547. The next prime is 61005101010697. The reversal of 61005101010550 is 5501010150016.

It is a super-2 number, since 2×61005101010550² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1271736966 + ... + 1271784934.

It is an arithmetic number, because the mean of its divisors is an integer number (2365816839750).

Almost surely, 2^{61005101010550} is an apocalyptic number.

61005101010550 is a deficient number, since it is larger than the sum of its proper divisors (52554107297450).

61005101010550 is a wasteful number, since it uses less digits than its factorization.

61005101010550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67561 (or 67556 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 61005101010550 its reverse (5501010150016), we get a palindrome (66506111160566).

The spelling of 61005101010550 in words is "sixty-one trillion, five billion, one hundred one million, ten thousand, five hundred fifty".