616951240155 has 96 divisors (see below), whose sum is σ = 1128677621760. Its totient is φ = 311305800960.

The previous prime is 616951240153. The next prime is 616951240183. The reversal of 616951240155 is 551042159616.

616951240155 is a `hidden beast` number, since 61 + 69 + 512 + 4 + 0 + 15 + 5 = 666.

It is not a de Polignac number, because 616951240155 - 2¹ = 616951240153 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 616951240155.

It is not an unprimeable number, because it can be changed into a prime (616951240153) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16681614 + ... + 16718556.

It is an arithmetic number, because the mean of its divisors is an integer number (11757058560).

Almost surely, 2^616951240155 is an apocalyptic number.

616951240155 is a deficient number, since it is larger than the sum of its proper divisors (511726381605).

616951240155 is a wasteful number, since it uses less digits than its factorization.

616951240155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37241 (or 37238 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The spelling of 616951240155 in words is "six hundred sixteen billion, nine hundred fifty-one million, two hundred forty thousand, one hundred fifty-five".