15561060600 has 48 divisors (see below), whose sum is σ = 48239289720. Its totient is φ = 4149616000.

The previous prime is 15561060589. The next prime is 15561060617. The reversal of 15561060600 is 606016551.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12966951 + ... + 12968150.

Almost surely, 2^15561060600 is an apocalyptic number.

15561060600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15561060600 is an abundant number, since it is smaller than the sum of its proper divisors (32678229120).

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

15561060600 is a wasteful number, since it uses less digits than its factorization.

15561060600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25935120 (or 25935111 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 15561060600 in words is "fifteen billion, five hundred sixty-one million, sixty thousand, six hundred".