356868116661 has 128 divisors (see below), whose sum is σ = 590341734400. Its totient is φ = 191369304000.

The previous prime is 356868116651. The next prime is 356868116663. The reversal of 356868116661 is 166611868653.

It is not a de Polignac number, because 356868116661 - 2⁹ = 356868116149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356868116663) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 207119346 + ... + 207121068.

It is an arithmetic number, because the mean of its divisors is an integer number (4612044800).

Almost surely, 2^356868116661 is an apocalyptic number.

356868116661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

356868116661 is a deficient number, since it is larger than the sum of its proper divisors (233473617739).

356868116661 is a wasteful number, since it uses less digits than its factorization.

356868116661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1958 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 356868116661 in words is "three hundred fifty-six billion, eight hundred sixty-eight million, one hundred sixteen thousand, six hundred sixty-one".