615968496 has 320 divisors, whose sum is σ = 2124864000. Its totient is φ = 169378560.

The previous prime is 615968471. The next prime is 615968513. The reversal of 615968496 is 694869516.

It is a happy number.

615968496 is a `hidden beast` number, since 6 + 1 + 596 + 8 + 49 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10440115 + ... + 10440173.

It is an arithmetic number, because the mean of its divisors is an integer number (6640200).

Almost surely, 2^615968496 is an apocalyptic number.

615968496 is a gapful number since it is divisible by the number (66) 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 615968496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062432000).

615968496 is an abundant number, since it is smaller than the sum of its proper divisors (1508895504).

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

615968496 is a wasteful number, since it uses less digits than its factorization.

615968496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 88 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 615968496 is about 24818.7126177004. The cubic root of 615968496 is about 850.8496675674.

The spelling of 615968496 in words is "six hundred fifteen million, nine hundred sixty-eight thousand, four hundred ninety-six".