13215953016 has 96 divisors (see below), whose sum is σ = 41143246560. Its totient is φ = 3754135296.

The previous prime is 13215953011. The next prime is 13215953027. The reversal of 13215953016 is 61035951231.

It is a happy number.

13215953016 is a `hidden beast` number, since 1 + 3 + 21 + 595 + 30 + 16 = 666.

It is a super-2 number, since 2×13215953016² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215953011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11406 + ... + 162978.

It is an arithmetic number, because the mean of its divisors is an integer number (428575485).

Almost surely, 2^13215953016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13215953016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20571623280).

13215953016 is an abundant number, since it is smaller than the sum of its proper divisors (27927293544).

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

13215953016 is a wasteful number, since it uses less digits than its factorization.

13215953016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151765 (or 151758 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The spelling of 13215953016 in words is "thirteen billion, two hundred fifteen million, nine hundred fifty-three thousand, sixteen".