64901023297920 has 192 divisors, whose sum is σ = 226948200148800. Its totient is φ = 17087864242176.

The previous prime is 64901023297879. The next prime is 64901023297937. The reversal of 64901023297920 is 2979232010946.

64901023297920 is a `hidden beast` number, since 6 + 490 + 10 + 2 + 32 + 97 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70858497 + ... + 71768576.

It is an arithmetic number, because the mean of its divisors is an integer number (1182021875775).

Almost surely, 2^{64901023297920} is an apocalyptic number.

64901023297920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64901023297920 is an abundant number, since it is smaller than the sum of its proper divisors (162047176850880).

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

64901023297920 is a wasteful number, since it uses less digits than its factorization.

64901023297920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142627177 (or 142627162 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 64901023297920 in words is "sixty-four trillion, nine hundred one billion, twenty-three million, two hundred ninety-seven thousand, nine hundred twenty".