13005631604 has 48 divisors (see below), whose sum is σ = 26304165888. Its totient is φ = 5511246048.

The previous prime is 13005631603. The next prime is 13005631619. The reversal of 13005631604 is 40613650031.

It is a happy number.

It is a super-2 number, since 2×13005631604² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005631603) 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, 2093567 + ... + 2099769.

It is an arithmetic number, because the mean of its divisors is an integer number (548003456).

Almost surely, 2^13005631604 is an apocalyptic number.

13005631604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13005631604 is an abundant number, since it is smaller than the sum of its proper divisors (13298534284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13005631604 is a wasteful number, since it uses less digits than its factorization.

13005631604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044 (or 7042 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 13005631604 in words is "thirteen billion, five million, six hundred thirty-one thousand, six hundred four".