15652465920 has 1296 divisors, whose sum is σ = 71246972160. Its totient is φ = 3260694528.

The previous prime is 15652465919. The next prime is 15652465921. The reversal of 15652465920 is 2956425651.

15652465920 is a `hidden beast` number, since 1 + 5 + 6 + 52 + 4 + 6 + 592 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (15652465919) and next prime (15652465921).

It is a tau number, because it is divible by the number of its divisors (1296).

It is a super-2 number, since 2×15652465920² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15652465921) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 198132441 + ... + 198132519.

Almost surely, 2^15652465920 is an apocalyptic number.

15652465920 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 15652465920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35623486080).

15652465920 is an abundant number, since it is smaller than the sum of its proper divisors (55594506240).

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

15652465920 is an equidigital number, since it uses as much as digits as its factorization.

15652465920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 15652465920 in words is "fifteen billion, six hundred fifty-two million, four hundred sixty-five thousand, nine hundred twenty".