376801166661 has 4 divisors (see below), whose sum is σ = 502401555552. Its totient is φ = 251200777772.

The previous prime is 376801166587. The next prime is 376801166671. The reversal of 376801166661 is 166661108673.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 376801166661 - 2²³ = 376792778053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376801166671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62800194441 + ... + 62800194446.

It is an arithmetic number, because the mean of its divisors is an integer number (125600388888).

Almost surely, 2^376801166661 is an apocalyptic number.

It is an amenable number.

376801166661 is a deficient number, since it is larger than the sum of its proper divisors (125600388891).

376801166661 is a wasteful number, since it uses less digits than its factorization.

376801166661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125600388890.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 376801166661 in words is "three hundred seventy-six billion, eight hundred one million, one hundred sixty-six thousand, six hundred sixty-one".