1357706666672 has 20 divisors (see below), whose sum is σ = 2643023766456. Its totient is φ = 675636017280.

The previous prime is 1357706666639. The next prime is 1357706666807. The reversal of 1357706666672 is 2766666077531.

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, 201078773 + ... + 201085524.

Almost surely, 2^{1357706666672} is an apocalyptic number.

It is an amenable number.

1357706666672 is a deficient number, since it is larger than the sum of its proper divisors (1285317099784).

1357706666672 is a wasteful number, since it uses less digits than its factorization.

1357706666672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402164516 (or 402164510 counting only the distinct ones).

The product of its (nonzero) digits is 80015040, while the sum is 62.

The spelling of 1357706666672 in words is "one trillion, three hundred fifty-seven billion, seven hundred six million, six hundred sixty-six thousand, six hundred seventy-two".