157620671211 has 32 divisors (see below), whose sum is σ = 225675417600. Its totient is φ = 97635363840.

The previous prime is 157620671207. The next prime is 157620671231. The reversal of 157620671211 is 112176026751.

It is not a de Polignac number, because 157620671211 - 2² = 157620671207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157620671211.

It is not an unprimeable number, because it can be changed into a prime (157620671231) 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, 319515 + ... + 646011.

It is an arithmetic number, because the mean of its divisors is an integer number (7052356800).

Almost surely, 2^157620671211 is an apocalyptic number.

157620671211 is a deficient number, since it is larger than the sum of its proper divisors (68054746389).

157620671211 is a wasteful number, since it uses less digits than its factorization.

157620671211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326739.

The product of its (nonzero) digits is 35280, while the sum is 39.

Adding to 157620671211 its reverse (112176026751), we get a palindrome (269796697962).

The spelling of 157620671211 in words is "one hundred fifty-seven billion, six hundred twenty million, six hundred seventy-one thousand, two hundred eleven".