79400665101501 has 12 divisors (see below), whose sum is σ = 114725791296480. Its totient is φ = 52917188254920.

The previous prime is 79400665101473. The next prime is 79400665101509. The reversal of 79400665101501 is 10510156600497.

79400665101501 is a `hidden beast` number, since 7 + 94 + 0 + 0 + 6 + 6 + 51 + 0 + 1 + 501 = 666.

It is not a de Polignac number, because 79400665101501 - 2¹⁵ = 79400665068733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79400665101509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1382342971 + ... + 1382400408.

It is an arithmetic number, because the mean of its divisors is an integer number (9560482608040).

Almost surely, 2^{79400665101501} is an apocalyptic number.

It is an amenable number.

79400665101501 is a deficient number, since it is larger than the sum of its proper divisors (35325126194979).

79400665101501 is a wasteful number, since it uses less digits than its factorization.

79400665101501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764746576 (or 2764746573 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 79400665101501 in words is "seventy-nine trillion, four hundred billion, six hundred sixty-five million, one hundred one thousand, five hundred one".