615840947152 has 80 divisors (see below), whose sum is σ = 1217131562880. Its totient is φ = 301781491200.

The previous prime is 615840947149. The next prime is 615840947171. The reversal of 615840947152 is 251749048516.

It is a super-2 number, since 2×615840947152² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 615840947152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501090474 + ... + 501091702.

It is an arithmetic number, because the mean of its divisors is an integer number (15214144536).

Almost surely, 2^615840947152 is an apocalyptic number.

It is an amenable number.

615840947152 is a deficient number, since it is larger than the sum of its proper divisors (601290615728).

615840947152 is a wasteful number, since it uses less digits than its factorization.

615840947152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 615840947152 in words is "six hundred fifteen billion, eight hundred forty million, nine hundred forty-seven thousand, one hundred fifty-two".