164651656111654 has 16 divisors (see below), whose sum is σ = 247859329774896. Its totient is φ = 82031886428800.

The previous prime is 164651656111637. The next prime is 164651656111661. The reversal of 164651656111654 is 456111656156461.

It is a super-2 number, since 2×164651656111654² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47216634 + ... + 50583730.

It is an arithmetic number, because the mean of its divisors is an integer number (15491208110931).

Almost surely, 2^{164651656111654} is an apocalyptic number.

164651656111654 is a deficient number, since it is larger than the sum of its proper divisors (83207673663242).

164651656111654 is a wasteful number, since it uses less digits than its factorization.

164651656111654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454391.

The product of its digits is 15552000, while the sum is 58.

The spelling of 164651656111654 in words is "one hundred sixty-four trillion, six hundred fifty-one billion, six hundred fifty-six million, one hundred eleven thousand, six hundred fifty-four".