3161664240442 has 32 divisors (see below), whose sum is σ = 4880010920400. Its totient is φ = 1535355064320.

The previous prime is 3161664240433. The next prime is 3161664240473. The reversal of 3161664240442 is 2440424661613.

It can be written as a sum of positive squares in 8 ways, for example, as 73212995241 + 3088451245201 = 270579^2 + 1757399^2 .

It is a super-2 number, since 2×3161664240442² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17567778 + ... + 17746834.

Almost surely, 2^{3161664240442} is an apocalyptic number.

3161664240442 is a deficient number, since it is larger than the sum of its proper divisors (1718346679958).

3161664240442 is a wasteful number, since it uses less digits than its factorization.

3161664240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180066.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 3161664240442 in words is "three trillion, one hundred sixty-one billion, six hundred sixty-four million, two hundred forty thousand, four hundred forty-two".