15402666672 has 160 divisors (see below), whose sum is σ = 46983778560. Its totient is φ = 4814484480.

The previous prime is 15402666667. The next prime is 15402666683. The reversal of 15402666672 is 27666620451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2074647 + ... + 2082057.

It is an arithmetic number, because the mean of its divisors is an integer number (293648616).

Almost surely, 2^15402666672 is an apocalyptic number.

15402666672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15402666672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23491889280).

15402666672 is an abundant number, since it is smaller than the sum of its proper divisors (31581111888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15402666672 is a wasteful number, since it uses less digits than its factorization.

15402666672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728 (or 7716 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 15402666672 in words is "fifteen billion, four hundred two million, six hundred sixty-six thousand, six hundred seventy-two".