15151565649 has 16 divisors (see below), whose sum is σ = 22798595520. Its totient is φ = 8866119360.

The previous prime is 15151565633. The next prime is 15151565659. The reversal of 15151565649 is 94656515151.

It is not a de Polignac number, because 15151565649 - 2⁴ = 15151565633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15151565598 and 15151565607.

It is not an unprimeable number, because it can be changed into a prime (15151565659) 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, 7915222 + ... + 7917135.

It is an arithmetic number, because the mean of its divisors is an integer number (1424912220).

Almost surely, 2^15151565649 is an apocalyptic number.

It is an amenable number.

15151565649 is a deficient number, since it is larger than the sum of its proper divisors (7647029871).

15151565649 is a wasteful number, since it uses less digits than its factorization.

15151565649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15832400.

The product of its digits is 810000, while the sum is 48.

The spelling of 15151565649 in words is "fifteen billion, one hundred fifty-one million, five hundred sixty-five thousand, six hundred forty-nine".