64143020631260 has 24 divisors (see below), whose sum is σ = 134704658775456. Its totient is φ = 25656386262080.

The previous prime is 64143020631181. The next prime is 64143020631323. The reversal of 64143020631260 is 6213602034146.

It is a super-2 number, since 2×64143020631260² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50734331 + ... + 51983250.

It is an arithmetic number, because the mean of its divisors is an integer number (5612694115644).

Almost surely, 2^{64143020631260} is an apocalyptic number.

It is an amenable number.

64143020631260 is an abundant number, since it is smaller than the sum of its proper divisors (70561638144196).

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

64143020631260 is a wasteful number, since it uses less digits than its factorization.

64143020631260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102748813 (or 102748811 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 64143020631260 in words is "sixty-four trillion, one hundred forty-three billion, twenty million, six hundred thirty-one thousand, two hundred sixty".