616052101665 has 64 divisors (see below), whose sum is σ = 1323435036672. Its totient is φ = 236327673600.

The previous prime is 616052101663. The next prime is 616052101673. The reversal of 616052101665 is 566101250616.

It is not a de Polignac number, because 616052101665 - 2¹ = 616052101663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (616052101663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20499541 + ... + 20529570.

It is an arithmetic number, because the mean of its divisors is an integer number (20678672448).

Almost surely, 2^616052101665 is an apocalyptic number.

616052101665 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

616052101665 is an abundant number, since it is smaller than the sum of its proper divisors (707382935007).

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

616052101665 is a wasteful number, since it uses less digits than its factorization.

616052101665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41029150.

The product of its (nonzero) digits is 64800, while the sum is 39.

It can be divided in two parts, 616052 and 101665, that added together give a palindrome (717717).

The spelling of 616052101665 in words is "six hundred sixteen billion, fifty-two million, one hundred one thousand, six hundred sixty-five".