157521216625683 has 32 divisors (see below), whose sum is σ = 211734207360000. Its totient is φ = 104163646070016.

The previous prime is 157521216625681. The next prime is 157521216625733. The reversal of 157521216625683 is 386526612125751.

It is a happy number.

It is not a de Polignac number, because 157521216625683 - 2¹ = 157521216625681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157521216625681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 761593560 + ... + 761800362.

It is an arithmetic number, because the mean of its divisors is an integer number (6616693980000).

Almost surely, 2^{157521216625683} is an apocalyptic number.

157521216625683 is a deficient number, since it is larger than the sum of its proper divisors (54212990734317).

157521216625683 is a wasteful number, since it uses less digits than its factorization.

157521216625683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209771.

The product of its digits is 36288000, while the sum is 60.

The spelling of 157521216625683 in words is "one hundred fifty-seven trillion, five hundred twenty-one billion, two hundred sixteen million, six hundred twenty-five thousand, six hundred eighty-three".