15606420414663 has 24 divisors (see below), whose sum is σ = 22785519134160. Its totient is φ = 9496041434880.

The previous prime is 15606420414521. The next prime is 15606420414701. The reversal of 15606420414663 is 36641402460651.

It is not a de Polignac number, because 15606420414663 - 2¹⁷ = 15606420283591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15606420414163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172886868 + ... + 172977113.

It is an arithmetic number, because the mean of its divisors is an integer number (949396630590).

Almost surely, 2^{15606420414663} is an apocalyptic number.

15606420414663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15606420414663 is a deficient number, since it is larger than the sum of its proper divisors (7179098719497).

15606420414663 is a wasteful number, since it uses less digits than its factorization.

15606420414663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345864099 (or 345864086 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 15606420414663 in words is "fifteen trillion, six hundred six billion, four hundred twenty million, four hundred fourteen thousand, six hundred sixty-three".