15445772160 has 768 divisors, whose sum is σ = 62883293760. Its totient is φ = 3195666432.

The previous prime is 15445772143. The next prime is 15445772179. The reversal of 15445772160 is 6127754451.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 89281834 + ... + 89282006.

Almost surely, 2^15445772160 is an apocalyptic number.

15445772160 is a gapful number since it is divisible by the number (10) 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 15445772160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31441646880).

15445772160 is an abundant number, since it is smaller than the sum of its proper divisors (47437521600).

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

15445772160 is a wasteful number, since it uses less digits than its factorization.

15445772160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 15445772160 in words is "fifteen billion, four hundred forty-five million, seven hundred seventy-two thousand, one hundred sixty".