616694715 has 160 divisors (see below), whose sum is σ = 1409950080. Its totient is φ = 250822656.

The previous prime is 616694707. The next prime is 616694717. The reversal of 616694715 is 517496616.

It is not a de Polignac number, because 616694715 - 2³ = 616694707 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (616694717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1068507 + ... + 1069083.

It is an arithmetic number, because the mean of its divisors is an integer number (8812188).

Almost surely, 2^616694715 is an apocalyptic number.

616694715 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

616694715 is an abundant number, since it is smaller than the sum of its proper divisors (793255365).

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

616694715 is a wasteful number, since it uses less digits than its factorization.

616694715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 634 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 616694715 is about 24833.3387807600. The cubic root of 616694715 is about 851.1839165452.

The spelling of 616694715 in words is "six hundred sixteen million, six hundred ninety-four thousand, seven hundred fifteen".