2616623158957 has 8 divisors (see below), whose sum is σ = 2647248057720. Its totient is φ = 2586025474560.

The previous prime is 2616623158949. The next prime is 2616623158991. The reversal of 2616623158957 is 7598513266162.

It can be written as a sum of positive squares in 4 ways, for example, as 336318921 + 2616286840036 = 18339^2 + 1617494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2616623158957 - 2³ = 2616623158949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2616623158895 and 2616623158904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2616623158157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6610138 + ... + 6994795.

It is an arithmetic number, because the mean of its divisors is an integer number (330906007215).

Almost surely, 2^{2616623158957} is an apocalyptic number.

It is an amenable number.

2616623158957 is a deficient number, since it is larger than the sum of its proper divisors (30624898763).

2616623158957 is a wasteful number, since it uses less digits than its factorization.

2616623158957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607183.

The product of its digits is 32659200, while the sum is 61.

The spelling of 2616623158957 in words is "two trillion, six hundred sixteen billion, six hundred twenty-three million, one hundred fifty-eight thousand, nine hundred fifty-seven".