155559328921102 has 16 divisors (see below), whose sum is σ = 233690164868160. Its totient is φ = 77662679897088.

The previous prime is 155559328921069. The next prime is 155559328921151. The reversal of 155559328921102 is 201129823955551.

It is a super-2 number, since 2×155559328921102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13862227 + ... + 22433902.

It is an arithmetic number, because the mean of its divisors is an integer number (14605635304260).

Almost surely, 2^{155559328921102} is an apocalyptic number.

155559328921102 is a deficient number, since it is larger than the sum of its proper divisors (78130835947058).

155559328921102 is a wasteful number, since it uses less digits than its factorization.

155559328921102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36299355.

The product of its (nonzero) digits is 9720000, while the sum is 58.

The spelling of 155559328921102 in words is "one hundred fifty-five trillion, five hundred fifty-nine billion, three hundred twenty-eight million, nine hundred twenty-one thousand, one hundred two".