1372157646666 has 8 divisors (see below), whose sum is σ = 2744315293344. Its totient is φ = 457385882220.

The previous prime is 1372157646659. The next prime is 1372157646689. The reversal of 1372157646666 is 6666467512731.

It is a sphenic number, since it is the product of 3 distinct primes.

1372157646666 is an admirable number.

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, 114346470550 + ... + 114346470561.

It is an arithmetic number, because the mean of its divisors is an integer number (343039411668).

Almost surely, 2^{1372157646666} is an apocalyptic number.

1372157646666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1372157646666 is a wasteful number, since it uses less digits than its factorization.

1372157646666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228692941116.

The product of its digits is 45722880, while the sum is 60.

The spelling of 1372157646666 in words is "one trillion, three hundred seventy-two billion, one hundred fifty-seven million, six hundred forty-six thousand, six hundred sixty-six".