155930157988646 has 16 divisors (see below), whose sum is σ = 239764346380944. Its totient is φ = 76015219578144.

The previous prime is 155930157988643. The next prime is 155930157988667. The reversal of 155930157988646 is 646889751039551.

155930157988646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1627547585 + ... + 1627643388.

It is an arithmetic number, because the mean of its divisors is an integer number (14985271648809).

Almost surely, 2^{155930157988646} is an apocalyptic number.

155930157988646 is a deficient number, since it is larger than the sum of its proper divisors (83834188392298).

155930157988646 is a wasteful number, since it uses less digits than its factorization.

155930157988646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255191575.

The product of its (nonzero) digits is 1959552000, while the sum is 77.

The spelling of 155930157988646 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-six".