157620535065 has 64 divisors (see below), whose sum is σ = 337099929600. Its totient is φ = 68262720192.

The previous prime is 157620534979. The next prime is 157620535069. The reversal of 157620535065 is 560535026751.

157620535065 is a `hidden beast` number, since 1 + 5 + 76 + 20 + 53 + 506 + 5 = 666.

It is not a de Polignac number, because 157620535065 - 2⁸ = 157620534809 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 157620535065.

It is not an unprimeable number, because it can be changed into a prime (157620535069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4371367 + ... + 4407276.

It is an arithmetic number, because the mean of its divisors is an integer number (5267186400).

Almost surely, 2^157620535065 is an apocalyptic number.

157620535065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157620535065 is an abundant number, since it is smaller than the sum of its proper divisors (179479394535).

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

157620535065 is a wasteful number, since it uses less digits than its factorization.

157620535065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8778683 (or 8778677 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 157620535065 in words is "one hundred fifty-seven billion, six hundred twenty million, five hundred thirty-five thousand, sixty-five".