64642446040600 has 48 divisors (see below), whose sum is σ = 156828195187920. Its totient is φ = 24732761961600.

The previous prime is 64642446040483. The next prime is 64642446040619. The reversal of 64642446040600 is 604064424646.

It is a super-2 number, since 2×64642446040600² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7026348231 + ... + 7026357430.

It is an arithmetic number, because the mean of its divisors is an integer number (3267254066415).

Almost surely, 2^{64642446040600} is an apocalyptic number.

It is an amenable number.

64642446040600 is an abundant number, since it is smaller than the sum of its proper divisors (92185749147320).

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

64642446040600 is a wasteful number, since it uses less digits than its factorization.

64642446040600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14052705700 (or 14052705691 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 64642446040600 in words is "sixty-four trillion, six hundred forty-two billion, four hundred forty-six million, forty thousand, six hundred".