157685290105 has 48 divisors (see below), whose sum is σ = 231820678080. Its totient is φ = 102383180928.

The previous prime is 157685290099. The next prime is 157685290123. The reversal of 157685290105 is 501092586751.

157685290105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157685290105 - 2¹⁵ = 157685257337 is a prime.

It is a super-2 number, since 2×157685290105² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10293862 + ... + 10309168.

It is an arithmetic number, because the mean of its divisors is an integer number (4829597460).

Almost surely, 2^157685290105 is an apocalyptic number.

It is an amenable number.

157685290105 is a deficient number, since it is larger than the sum of its proper divisors (74135387975).

157685290105 is a wasteful number, since it uses less digits than its factorization.

157685290105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17558 (or 17551 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 49.

The spelling of 157685290105 in words is "one hundred fifty-seven billion, six hundred eighty-five million, two hundred ninety thousand, one hundred five".