1656374532068 has 12 divisors (see below), whose sum is σ = 3069164574252. Its totient is φ = 779470368000.

The previous prime is 1656374532013. The next prime is 1656374532083. The reversal of 1656374532068 is 8602354736561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1496100815104 + 160273716964 = 1223152^2 + 400342^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12179224433 + ... + 12179224568.

It is an arithmetic number, because the mean of its divisors is an integer number (255763714521).

Almost surely, 2^{1656374532068} is an apocalyptic number.

It is an amenable number.

1656374532068 is a deficient number, since it is larger than the sum of its proper divisors (1412790042184).

1656374532068 is a wasteful number, since it uses less digits than its factorization.

1656374532068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24358449022 (or 24358449020 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 1656374532068 in words is "one trillion, six hundred fifty-six billion, three hundred seventy-four million, five hundred thirty-two thousand, sixty-eight".