40246645531656 has 16 divisors (see below), whose sum is σ = 100616613829200. Its totient is φ = 13415548510544.

The previous prime is 40246645531649. The next prime is 40246645531661. The reversal of 40246645531656 is 65613554664204.

It is a junction number, because it is equal to n+sod(n) for n = 40246645531596 and 40246645531605.

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, 838471781886 + ... + 838471781933.

It is an arithmetic number, because the mean of its divisors is an integer number (6288538364325).

Almost surely, 2^{40246645531656} is an apocalyptic number.

It is an amenable number.

40246645531656 is an abundant number, since it is smaller than the sum of its proper divisors (60369968297544).

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

40246645531656 is a wasteful number, since it uses less digits than its factorization.

40246645531656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676943563828 (or 1676943563824 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 57.

The spelling of 40246645531656 in words is "forty trillion, two hundred forty-six billion, six hundred forty-five million, five hundred thirty-one thousand, six hundred fifty-six".