157146264561 has 64 divisors (see below), whose sum is σ = 260859191040. Its totient is φ = 82811904000.

The previous prime is 157146264547. The next prime is 157146264581. The reversal of 157146264561 is 165462641751.

It is not a de Polignac number, because 157146264561 - 2⁵ = 157146264529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157146264561.

It is not an unprimeable number, because it can be changed into a prime (157146264581) 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, 356041 + ... + 664121.

It is an arithmetic number, because the mean of its divisors is an integer number (4075924860).

Almost surely, 2^157146264561 is an apocalyptic number.

157146264561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

157146264561 is a deficient number, since it is larger than the sum of its proper divisors (103712926479).

157146264561 is a wasteful number, since it uses less digits than its factorization.

157146264561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308178.

The product of its digits is 1209600, while the sum is 48.

The spelling of 157146264561 in words is "one hundred fifty-seven billion, one hundred forty-six million, two hundred sixty-four thousand, five hundred sixty-one".