164266137636 has 48 divisors (see below), whose sum is σ = 391531117824. Its totient is φ = 53590074016.

The previous prime is 164266137583. The next prime is 164266137647. The reversal of 164266137636 is 636731662461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664110 + ... + 877253.

It is an arithmetic number, because the mean of its divisors is an integer number (8156898288).

Almost surely, 2^164266137636 is an apocalyptic number.

It is an amenable number.

164266137636 is an abundant number, since it is smaller than the sum of its proper divisors (227264980188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164266137636 is a wasteful number, since it uses less digits than its factorization.

164266137636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541560 (or 1541558 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 51.

The spelling of 164266137636 in words is "one hundred sixty-four billion, two hundred sixty-six million, one hundred thirty-seven thousand, six hundred thirty-six".