155680345560 has 64 divisors (see below), whose sum is σ = 471665242080. Its totient is φ = 41103718400.

The previous prime is 155680345487. The next prime is 155680345567. The reversal of 155680345560 is 65543086551.

It is a happy number.

155680345560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155680345567) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6410337 + ... + 6434576.

Almost surely, 2^155680345560 is an apocalyptic number.

155680345560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155680345560 is an abundant number, since it is smaller than the sum of its proper divisors (315984896520).

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

155680345560 is a wasteful number, since it uses less digits than its factorization.

155680345560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845028 (or 12845024 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 155680345560 in words is "one hundred fifty-five billion, six hundred eighty million, three hundred forty-five thousand, five hundred sixty".