157732041691 has 6 divisors (see below), whose sum is σ = 183484211820. Its totient is φ = 135198892836.

The previous prime is 157732041679. The next prime is 157732041707. The reversal of 157732041691 is 196140237751.

It is a de Polignac number, because none of the positive numbers 2^k-157732041691 is a prime.

It is a super-2 number, since 2×157732041691² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157732041611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1609510581 + ... + 1609510678.

It is an arithmetic number, because the mean of its divisors is an integer number (30580701970).

Almost surely, 2^157732041691 is an apocalyptic number.

157732041691 is a deficient number, since it is larger than the sum of its proper divisors (25752170129).

157732041691 is an equidigital number, since it uses as much as digits as its factorization.

157732041691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219021273 (or 3219021266 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 157732041691 in words is "one hundred fifty-seven billion, seven hundred thirty-two million, forty-one thousand, six hundred ninety-one".