15445656412 has 6 divisors (see below), whose sum is σ = 27029898728. Its totient is φ = 7722828204.

The previous prime is 15445656397. The next prime is 15445656419. The reversal of 15445656412 is 21465654451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15445656419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930707048 + ... + 1930707055.

Almost surely, 2^15445656412 is an apocalyptic number.

It is an amenable number.

15445656412 is a deficient number, since it is larger than the sum of its proper divisors (11584242316).

15445656412 is a wasteful number, since it uses less digits than its factorization.

15445656412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861414107 (or 3861414105 counting only the distinct ones).

The product of its digits is 576000, while the sum is 43.

The spelling of 15445656412 in words is "fifteen billion, four hundred forty-five million, six hundred fifty-six thousand, four hundred twelve".