401646373632 has 216 divisors, whose sum is σ = 1381656721200. Its totient is φ = 114756009984.

The previous prime is 401646373621. The next prime is 401646373651. The reversal of 401646373632 is 236373646104.

401646373632 is a `hidden beast` number, since 4 + 0 + 1 + 6 + 4 + 6 + 3 + 7 + 3 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a super-2 number, since 2×401646373632² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254257 + ... + 931632.

Almost surely, 2^401646373632 is an apocalyptic number.

401646373632 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

401646373632 is an abundant number, since it is smaller than the sum of its proper divisors (980010347568).

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

401646373632 is a wasteful number, since it uses less digits than its factorization.

401646373632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185928 (or 1185901 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 401646373632 in words is "four hundred one billion, six hundred forty-six million, three hundred seventy-three thousand, six hundred thirty-two".