164903157525 has 24 divisors (see below), whose sum is σ = 272657084544. Its totient is φ = 87942803200.

The previous prime is 164903157491. The next prime is 164903157599. The reversal of 164903157525 is 525751309461.

It is not a de Polignac number, because 164903157525 - 2¹⁰ = 164903156501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1309060 + ... + 1429490.

It is an arithmetic number, because the mean of its divisors is an integer number (11360711856).

Almost surely, 2^164903157525 is an apocalyptic number.

164903157525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164903157525 is a deficient number, since it is larger than the sum of its proper divisors (107753927019).

164903157525 is a wasteful number, since it uses less digits than its factorization.

164903157525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138701 (or 138696 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 164903157525 in words is "one hundred sixty-four billion, nine hundred three million, one hundred fifty-seven thousand, five hundred twenty-five".