164237651331 has 16 divisors (see below), whose sum is σ = 237685346304. Its totient is φ = 100273499424.

The previous prime is 164237651329. The next prime is 164237651351. The reversal of 164237651331 is 133156732461.

It is not a de Polignac number, because 164237651331 - 2¹ = 164237651329 is a prime.

It is a super-2 number, since 2×164237651331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164237651351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16574661 + ... + 16584566.

It is an arithmetic number, because the mean of its divisors is an integer number (14855334144).

Almost surely, 2^164237651331 is an apocalyptic number.

164237651331 is a deficient number, since it is larger than the sum of its proper divisors (73447694973).

164237651331 is a wasteful number, since it uses less digits than its factorization.

164237651331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33159370.

The product of its digits is 272160, while the sum is 42.

The spelling of 164237651331 in words is "one hundred sixty-four billion, two hundred thirty-seven million, six hundred fifty-one thousand, three hundred thirty-one".