164621054157 has 16 divisors (see below), whose sum is σ = 265607079552. Its totient is φ = 88535692800.

The previous prime is 164621054131. The next prime is 164621054167. The reversal of 164621054157 is 751450126461.

164621054157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164621054157 - 2⁷ = 164621054029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164621054167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230561344 + ... + 230562057.

It is an arithmetic number, because the mean of its divisors is an integer number (16600442472).

Almost surely, 2^164621054157 is an apocalyptic number.

164621054157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

164621054157 is a deficient number, since it is larger than the sum of its proper divisors (100986025395).

164621054157 is a wasteful number, since it uses less digits than its factorization.

164621054157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461123428.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 164621054157 in words is "one hundred sixty-four billion, six hundred twenty-one million, fifty-four thousand, one hundred fifty-seven".