157230205965 has 48 divisors (see below), whose sum is σ = 329787065088. Its totient is φ = 67648624128.

The previous prime is 157230205961. The next prime is 157230205991. The reversal of 157230205965 is 569502032751.

157230205965 is a `hidden beast` number, since 1 + 5 + 7 + 2 + 30 + 20 + 596 + 5 = 666.

It is not a de Polignac number, because 157230205965 - 2² = 157230205961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 157230205965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157230205961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14675337 + ... + 14686046.

It is an arithmetic number, because the mean of its divisors is an integer number (6870563856).

Almost surely, 2^157230205965 is an apocalyptic number.

157230205965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157230205965 is an abundant number, since it is smaller than the sum of its proper divisors (172556859123).

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

157230205965 is a wasteful number, since it uses less digits than its factorization.

157230205965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29361418 (or 29361415 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 157230205965 in words is "one hundred fifty-seven billion, two hundred thirty million, two hundred five thousand, nine hundred sixty-five".