15046656378 has 64 divisors (see below), whose sum is σ = 34877267712. Its totient is φ = 4285946880.

The previous prime is 15046656353. The next prime is 15046656431. The reversal of 15046656378 is 87365664051.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15046656378.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12126 + ... + 173897.

It is an arithmetic number, because the mean of its divisors is an integer number (544957308).

Almost surely, 2^15046656378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15046656378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17438633856).

15046656378 is an abundant number, since it is smaller than the sum of its proper divisors (19830611334).

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

15046656378 is a wasteful number, since it uses less digits than its factorization.

15046656378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186119.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 15046656378 in words is "fifteen billion, forty-six million, six hundred fifty-six thousand, three hundred seventy-eight".