15906000004 has 24 divisors (see below), whose sum is σ = 29196074880. Its totient is φ = 7573411296.

The previous prime is 15905999987. The next prime is 15906000023. The reversal of 15906000004 is 40000060951.

It is a super-2 number, since 2×15906000004² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136374 + ... + 1150285.

It is an arithmetic number, because the mean of its divisors is an integer number (1216503120).

Almost surely, 2^15906000004 is an apocalyptic number.

It is an amenable number.

15906000004 is a deficient number, since it is larger than the sum of its proper divisors (13290074876).

15906000004 is a wasteful number, since it uses less digits than its factorization.

15906000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286747 (or 2286745 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 15906000004 its reverse (40000060951), we get a palindrome (55906060955).

The spelling of 15906000004 in words is "fifteen billion, nine hundred six million, four", and thus it is an aban number.