2357661663 has 48 divisors (see below), whose sum is σ = 4079851776. Its totient is φ = 1283748480.

The previous prime is 2357661619. The next prime is 2357661673. The reversal of 2357661663 is 3661667532.

2357661663 is a `hidden beast` number, since 2 + 3 + 576 + 6 + 16 + 63 = 666.

It is not a de Polignac number, because 2357661663 - 2⁶ = 2357661599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2357661673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100456 + ... + 121682.

It is an arithmetic number, because the mean of its divisors is an integer number (84996912).

Almost surely, 2^2357661663 is an apocalyptic number.

2357661663 is a deficient number, since it is larger than the sum of its proper divisors (1722190113).

2357661663 is a wasteful number, since it uses less digits than its factorization.

2357661663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324 (or 21321 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 2357661663 is about 48555.7582887962. The cubic root of 2357661663 is about 1330.9461793740.

The spelling of 2357661663 in words is "two billion, three hundred fifty-seven million, six hundred sixty-one thousand, six hundred sixty-three".