64215262152620 has 192 divisors, whose sum is σ = 139880311603200. Its totient is φ = 24749237280768.

The previous prime is 64215262152551. The next prime is 64215262152641. The reversal of 64215262152620 is 2625126251246.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9957395156 + ... + 9957401604.

It is an arithmetic number, because the mean of its divisors is an integer number (728543289600).

Almost surely, 2^{64215262152620} is an apocalyptic number.

It is an amenable number.

64215262152620 is an abundant number, since it is smaller than the sum of its proper divisors (75665049450580).

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

64215262152620 is a wasteful number, since it uses less digits than its factorization.

64215262152620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272 (or 7270 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 64215262152620 in words is "sixty-four trillion, two hundred fifteen billion, two hundred sixty-two million, one hundred fifty-two thousand, six hundred twenty".