1400356513656 has 96 divisors (see below), whose sum is σ = 4029919086960. Its totient is φ = 437775031296.

The previous prime is 1400356513651. The next prime is 1400356513669. The reversal of 1400356513656 is 6563156530041.

It is a happy number.

1400356513656 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 3 + 565 + 1 + 36 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400356513651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1674955 + ... + 2367738.

Almost surely, 2^{1400356513656} is an apocalyptic number.

It is an amenable number.

1400356513656 is an abundant number, since it is smaller than the sum of its proper divisors (2629562573304).

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

1400356513656 is a wasteful number, since it uses less digits than its factorization.

1400356513656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043005 (or 4042998 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 1400356513656 in words is "one trillion, four hundred billion, three hundred fifty-six million, five hundred thirteen thousand, six hundred fifty-six".