401646236152 has 32 divisors (see below), whose sum is σ = 862136795520. Its totient is φ = 171840843360.

The previous prime is 401646236143. The next prime is 401646236171. The reversal of 401646236152 is 251632646104.

It is a super-2 number, since 2×401646236152² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6076374 + ... + 6142117.

It is an arithmetic number, because the mean of its divisors is an integer number (26941774860).

Almost surely, 2^401646236152 is an apocalyptic number.

It is an amenable number.

401646236152 is an abundant number, since it is smaller than the sum of its proper divisors (460490559368).

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

401646236152 is a wasteful number, since it uses less digits than its factorization.

401646236152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12219091 (or 12219087 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 401646236152 in words is "four hundred one billion, six hundred forty-six million, two hundred thirty-six thousand, one hundred fifty-two".