15464965481856 has 160 divisors (see below), whose sum is σ = 50207440389480. Its totient is φ = 4686353141760.

The previous prime is 15464965481851. The next prime is 15464965481899. The reversal of 15464965481856 is 65818456946451.

15464965481856 is a `hidden beast` number, since 1 + 5 + 4 + 6 + 4 + 9 + 65 + 481 + 85 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15464965481851) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67686201 + ... + 67914296.

Almost surely, 2^{15464965481856} is an apocalyptic number.

15464965481856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15464965481856 is an abundant number, since it is smaller than the sum of its proper divisors (34742474907624).

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

15464965481856 is a wasteful number, since it uses less digits than its factorization.

15464965481856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135600534 (or 135600513 counting only the distinct ones).

The product of its digits is 995328000, while the sum is 72.

The spelling of 15464965481856 in words is "fifteen trillion, four hundred sixty-four billion, nine hundred sixty-five million, four hundred eighty-one thousand, eight hundred fifty-six".