616940955653 has 64 divisors (see below), whose sum is σ = 740125900800. Its totient is φ = 508292252160.

The previous prime is 616940955637. The next prime is 616940955661. The reversal of 616940955653 is 356559049616.

It is not a de Polignac number, because 616940955653 - 2⁴ = 616940955637 is a prime.

It is a super-2 number, since 2×616940955653² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 616940955592 and 616940955601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616940955613) 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, 370979900 + ... + 370981562.

It is an arithmetic number, because the mean of its divisors is an integer number (11564467200).

Almost surely, 2^616940955653 is an apocalyptic number.

It is an amenable number.

616940955653 is a deficient number, since it is larger than the sum of its proper divisors (123184945147).

616940955653 is a wasteful number, since it uses less digits than its factorization.

616940955653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642.

The product of its (nonzero) digits is 26244000, while the sum is 59.

The spelling of 616940955653 in words is "six hundred sixteen billion, nine hundred forty million, nine hundred fifty-five thousand, six hundred fifty-three".