155930157988645 has 32 divisors (see below), whose sum is σ = 197568722332800. Its totient is φ = 117816185281536.

The previous prime is 155930157988643. The next prime is 155930157988667. The reversal of 155930157988645 is 546889751039551.

155930157988645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 155930157988645 - 2¹ = 155930157988643 is a prime.

It is a super-3 number, since 3×155930157988645³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155930157988643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178134801 + ... + 179008009.

It is an arithmetic number, because the mean of its divisors is an integer number (6174022572900).

Almost surely, 2^{155930157988645} is an apocalyptic number.

It is an amenable number.

155930157988645 is a deficient number, since it is larger than the sum of its proper divisors (41638564344155).

155930157988645 is a wasteful number, since it uses less digits than its factorization.

155930157988645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878997.

The product of its (nonzero) digits is 1632960000, while the sum is 76.

The spelling of 155930157988645 in words is "one hundred fifty-five trillion, nine hundred thirty billion, one hundred fifty-seven million, nine hundred eighty-eight thousand, six hundred forty-five".