15442066456 has 32 divisors (see below), whose sum is σ = 29912400000. Its totient is φ = 7465835520.

The previous prime is 15442066429. The next prime is 15442066457. The reversal of 15442066456 is 65466024451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15442066457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284826 + ... + 334678.

It is an arithmetic number, because the mean of its divisors is an integer number (934762500).

Almost surely, 2^15442066456 is an apocalyptic number.

It is an amenable number.

15442066456 is a deficient number, since it is larger than the sum of its proper divisors (14470333544).

15442066456 is a wasteful number, since it uses less digits than its factorization.

15442066456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51139 (or 51135 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 15442066456 in words is "fifteen billion, four hundred forty-two million, sixty-six thousand, four hundred fifty-six".