407665978055 has 8 divisors (see below), whose sum is σ = 559084769952. Its totient is φ = 279542384928.

The previous prime is 407665978007. The next prime is 407665978129. The reversal of 407665978055 is 550879566704.

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

It is a cyclic number.

It is not a de Polignac number, because 407665978055 - 2²⁸ = 407397542599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5823799652 + ... + 5823799721.

It is an arithmetic number, because the mean of its divisors is an integer number (69885596244).

Almost surely, 2^407665978055 is an apocalyptic number.

407665978055 is a deficient number, since it is larger than the sum of its proper divisors (151418791897).

407665978055 is a wasteful number, since it uses less digits than its factorization.

407665978055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11647599385.

The product of its (nonzero) digits is 63504000, while the sum is 62.

The spelling of 407665978055 in words is "four hundred seven billion, six hundred sixty-five million, nine hundred seventy-eight thousand, fifty-five".