164845560988 has 6 divisors (see below), whose sum is σ = 288479731736. Its totient is φ = 82422780492.

The previous prime is 164845560977. The next prime is 164845560989. The reversal of 164845560988 is 889065548461.

It is a super-2 number, since 2×164845560988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164845560989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20605695120 + ... + 20605695127.

Almost surely, 2^164845560988 is an apocalyptic number.

It is an amenable number.

164845560988 is a deficient number, since it is larger than the sum of its proper divisors (123634170748).

164845560988 is a wasteful number, since it uses less digits than its factorization.

164845560988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41211390251 (or 41211390249 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 64.

The spelling of 164845560988 in words is "one hundred sixty-four billion, eight hundred forty-five million, five hundred sixty thousand, nine hundred eighty-eight".