164950900688 has 80 divisors (see below), whose sum is σ = 392318640000. Its totient is φ = 66972503808.

The previous prime is 164950900633. The next prime is 164950900691. The reversal of 164950900688 is 886009059461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

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, 686693 + ... + 895236.

It is an arithmetic number, because the mean of its divisors is an integer number (4903983000).

Almost surely, 2^164950900688 is an apocalyptic number.

It is an amenable number.

164950900688 is an abundant number, since it is smaller than the sum of its proper divisors (227367739312).

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

164950900688 is a wasteful number, since it uses less digits than its factorization.

164950900688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581977 (or 1581957 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 164950900688 in words is "one hundred sixty-four billion, nine hundred fifty million, nine hundred thousand, six hundred eighty-eight".