401233256463456 has 120 divisors (see below), whose sum is σ = 1180066599641160. Its totient is φ = 133738668145152.

The previous prime is 401233256463443. The next prime is 401233256463493. The reversal of 401233256463456 is 654364652332104.

401233256463456 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 3 + 3 + 256 + 46 + 345 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57178420 + ... + 63810956.

It is an arithmetic number, because the mean of its divisors is an integer number (9833888330343).

Almost surely, 2^{401233256463456} is an apocalyptic number.

It is an amenable number.

401233256463456 is an abundant number, since it is smaller than the sum of its proper divisors (778833343177704).

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

401233256463456 is a wasteful number, since it uses less digits than its factorization.

401233256463456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655898 (or 6655881 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 54.

The spelling of 401233256463456 in words is "four hundred one trillion, two hundred thirty-three billion, two hundred fifty-six million, four hundred sixty-three thousand, four hundred fifty-six".