401556461602 has 16 divisors (see below), whose sum is σ = 623230248960. Its totient is φ = 193815831888.

The previous prime is 401556461567. The next prime is 401556461611. The reversal of 401556461602 is 206164655104.

It is a super-2 number, since 2×401556461602² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404898 + ... + 983389.

It is an arithmetic number, because the mean of its divisors is an integer number (38951890560).

Almost surely, 2^401556461602 is an apocalyptic number.

401556461602 is a deficient number, since it is larger than the sum of its proper divisors (221673787358).

401556461602 is a wasteful number, since it uses less digits than its factorization.

401556461602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393305.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 401556461602 in words is "four hundred one billion, five hundred fifty-six million, four hundred sixty-one thousand, six hundred two".