15534166461 has 24 divisors (see below), whose sum is σ = 22800315552. Its totient is φ = 9400591200.

The previous prime is 15534166393. The next prime is 15534166511. The reversal of 15534166461 is 16466143551.

It is not a de Polignac number, because 15534166461 - 2⁹ = 15534165949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15534166261) 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, 214146 + ... + 277356.

It is an arithmetic number, because the mean of its divisors is an integer number (950013148).

Almost surely, 2^15534166461 is an apocalyptic number.

15534166461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15534166461 is a deficient number, since it is larger than the sum of its proper divisors (7266149091).

15534166461 is a wasteful number, since it uses less digits than its factorization.

15534166461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63913 (or 63902 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The spelling of 15534166461 in words is "fifteen billion, five hundred thirty-four million, one hundred sixty-six thousand, four hundred sixty-one".