13651081604 has 6 divisors (see below), whose sum is σ = 23889392814. Its totient is φ = 6825540800.

The previous prime is 13651081597. The next prime is 13651081627. The reversal of 13651081604 is 40618015631.

It can be written as a sum of positive squares in only one way, i.e., 9087808900 + 4563272704 = 95330^2 + 67552^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1706385197 + ... + 1706385204.

It is an arithmetic number, because the mean of its divisors is an integer number (3981565469).

Almost surely, 2^13651081604 is an apocalyptic number.

It is an amenable number.

13651081604 is a deficient number, since it is larger than the sum of its proper divisors (10238311210).

13651081604 is a wasteful number, since it uses less digits than its factorization.

13651081604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412770405 (or 3412770403 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 13651081604 in words is "thirteen billion, six hundred fifty-one million, eighty-one thousand, six hundred four".