400656153116016 has 60 divisors (see below), whose sum is σ = 1281463727826672. Its totient is φ = 114473186604288.

The previous prime is 400656153116003. The next prime is 400656153116017. The reversal of 400656153116016 is 610611351656004.

400656153116016 is a `hidden beast` number, since 4 + 0 + 0 + 6 + 5 + 6 + 1 + 5 + 31 + 1 + 601 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400656153116017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198738170181 + ... + 198738172196.

Almost surely, 2^{400656153116016} is an apocalyptic number.

It is an amenable number.

400656153116016 is an abundant number, since it is smaller than the sum of its proper divisors (880807574710656).

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

400656153116016 is a wasteful number, since it uses less digits than its factorization.

400656153116016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397476342398 (or 397476342389 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 400656153116016 in words is "four hundred trillion, six hundred fifty-six billion, one hundred fifty-three million, one hundred sixteen thousand, sixteen".