164462197081 has 24 divisors (see below), whose sum is σ = 206154783744. Its totient is φ = 130044852000.

The previous prime is 164462197069. The next prime is 164462197087. The reversal of 164462197081 is 180791264461.

It is not a de Polignac number, because 164462197081 - 2⁷ = 164462196953 is a prime.

It is a super-2 number, since 2×164462197081² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (164462197087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 981706 + ... + 1136956.

It is an arithmetic number, because the mean of its divisors is an integer number (8589782656).

Almost surely, 2^164462197081 is an apocalyptic number.

It is an amenable number.

164462197081 is a deficient number, since it is larger than the sum of its proper divisors (41692586663).

164462197081 is a wasteful number, since it uses less digits than its factorization.

164462197081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156941 (or 156934 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 164462197081 in words is "one hundred sixty-four billion, four hundred sixty-two million, one hundred ninety-seven thousand, eighty-one".