157940932065440 has 24 divisors (see below), whose sum is σ = 373135452004980. Its totient is φ = 63176372826112.

The previous prime is 157940932065391. The next prime is 157940932065451. The reversal of 157940932065440 is 44560239049751.

157940932065440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 155571438317584 + 2369493747856 = 12472828^2 + 1539316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157940932065440.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493565412545 + ... + 493565412864.

Almost surely, 2^{157940932065440} is an apocalyptic number.

157940932065440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157940932065440 is an abundant number, since it is smaller than the sum of its proper divisors (215194519939540).

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

157940932065440 is an equidigital number, since it uses as much as digits as its factorization.

157940932065440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987130825424 (or 987130825416 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 59.

The spelling of 157940932065440 in words is "one hundred fifty-seven trillion, nine hundred forty billion, nine hundred thirty-two million, sixty-five thousand, four hundred forty".