13890153656 has 8 divisors (see below), whose sum is σ = 26044038120. Its totient is φ = 6945076824.

The previous prime is 13890153653. The next prime is 13890153659. The reversal of 13890153656 is 65635109831.

It is an interprime number because it is at equal distance from previous prime (13890153653) and next prime (13890153659).

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13890153656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890153653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 868134596 + ... + 868134611.

It is an arithmetic number, because the mean of its divisors is an integer number (3255504765).

Almost surely, 2^13890153656 is an apocalyptic number.

It is an amenable number.

13890153656 is a deficient number, since it is larger than the sum of its proper divisors (12153884464).

13890153656 is a wasteful number, since it uses less digits than its factorization.

13890153656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736269213 (or 1736269209 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 13890153656 in words is "thirteen billion, eight hundred ninety million, one hundred fifty-three thousand, six hundred fifty-six".