2663665417479 has 16 divisors (see below), whose sum is σ = 3874458369024. Its totient is φ = 1614327700800.

The previous prime is 2663665417477. The next prime is 2663665417519. The reversal of 2663665417479 is 9747145663662.

It is not a de Polignac number, because 2663665417479 - 2¹ = 2663665417477 is a prime.

It is a super-2 number, since 2×2663665417479² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663665417477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3999114 + ... + 4617384.

It is an arithmetic number, because the mean of its divisors is an integer number (242153648064).

Almost surely, 2^{2663665417479} is an apocalyptic number.

2663665417479 is a deficient number, since it is larger than the sum of its proper divisors (1210792951545).

2663665417479 is a wasteful number, since it uses less digits than its factorization.

2663665417479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748838.

The product of its digits is 274337280, while the sum is 66.

The spelling of 2663665417479 in words is "two trillion, six hundred sixty-three billion, six hundred sixty-five million, four hundred seventeen thousand, four hundred seventy-nine".