402161604506242 has 32 divisors (see below), whose sum is σ = 722220752678400. Its totient is φ = 164305221208128.

The previous prime is 402161604506227. The next prime is 402161604506293. The reversal of 402161604506242 is 242605406161204.

It is a super-2 number, since 2×402161604506242² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6269245293 + ... + 6269309440.

It is an arithmetic number, because the mean of its divisors is an integer number (22569398521200).

Almost surely, 2^{402161604506242} is an apocalyptic number.

402161604506242 is a deficient number, since it is larger than the sum of its proper divisors (320059148172158).

402161604506242 is a wasteful number, since it uses less digits than its factorization.

402161604506242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12538554850.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 402161604506242 in words is "four hundred two trillion, one hundred sixty-one billion, six hundred four million, five hundred six thousand, two hundred forty-two".