400136530056 has 16 divisors (see below), whose sum is σ = 1000341325200. Its totient is φ = 133378843344.

The previous prime is 400136530043. The next prime is 400136530061. The reversal of 400136530056 is 650035631004.

It is a junction number, because it is equal to n+sod(n) for n = 400136529999 and 400136530026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8336177686 + ... + 8336177733.

It is an arithmetic number, because the mean of its divisors is an integer number (62521332825).

Almost surely, 2^400136530056 is an apocalyptic number.

It is an amenable number.

400136530056 is an abundant number, since it is smaller than the sum of its proper divisors (600204795144).

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

400136530056 is a wasteful number, since it uses less digits than its factorization.

400136530056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16672355428 (or 16672355424 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 400136530056 in words is "four hundred billion, one hundred thirty-six million, five hundred thirty thousand, fifty-six".