157651673541531 has 32 divisors (see below), whose sum is σ = 233865465637440. Its totient is φ = 94394349084672.

The previous prime is 157651673541497. The next prime is 157651673541533. The reversal of 157651673541531 is 135145376156751.

It is not a de Polignac number, because 157651673541531 - 2¹³ = 157651673533339 is a prime.

It is a super-2 number, since 2×157651673541531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157651673541533) 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, 322989030 + ... + 323476763.

It is an arithmetic number, because the mean of its divisors is an integer number (7308295801170).

Almost surely, 2^{157651673541531} is an apocalyptic number.

157651673541531 is a deficient number, since it is larger than the sum of its proper divisors (76213792095909).

157651673541531 is an equidigital number, since it uses as much as digits as its factorization.

157651673541531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646465872 (or 646465846 counting only the distinct ones).

The product of its digits is 39690000, while the sum is 60.

The spelling of 157651673541531 in words is "one hundred fifty-seven trillion, six hundred fifty-one billion, six hundred seventy-three million, five hundred forty-one thousand, five hundred thirty-one".