46406644066640 has 80 divisors (see below), whose sum is σ = 126758287950336. Its totient is φ = 15577055347200.

The previous prime is 46406644066583. The next prime is 46406644066681. The reversal of 46406644066640 is 4666044660464.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×46406644066640² (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 15 ways as a sum of consecutive naturals, for example, 2028250976 + ... + 2028273855.

Almost surely, 2^{46406644066640} is an apocalyptic number.

46406644066640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46406644066640 is an abundant number, since it is smaller than the sum of its proper divisors (80351643883696).

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

46406644066640 is a wasteful number, since it uses less digits than its factorization.

46406644066640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056524868 (or 4056524862 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 56.

The spelling of 46406644066640 in words is "forty-six trillion, four hundred six billion, six hundred forty-four million, sixty-six thousand, six hundred forty".