15535467081 has 24 divisors (see below), whose sum is σ = 22815028704. Its totient is φ = 10184486400.

The previous prime is 15535467061. The next prime is 15535467169. The reversal of 15535467081 is 18076453551.

15535467081 is a `hidden beast` number, since 1 + 5 + 535 + 46 + 70 + 8 + 1 = 666.

It is not a de Polignac number, because 15535467081 - 2⁵ = 15535467049 is a prime.

It is a super-2 number, since 2×15535467081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15535467061) 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, 325606 + ... + 370256.

It is an arithmetic number, because the mean of its divisors is an integer number (950626196).

Almost surely, 2^15535467081 is an apocalyptic number.

It is an amenable number.

15535467081 is a deficient number, since it is larger than the sum of its proper divisors (7279561623).

15535467081 is a wasteful number, since it uses less digits than its factorization.

15535467081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45301 (or 45298 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 15535467081 in words is "fifteen billion, five hundred thirty-five million, four hundred sixty-seven thousand, eighty-one".