653677716123 has 12 divisors (see below), whose sum is σ = 944706901528. Its totient is φ = 435551718240.

The previous prime is 653677716121. The next prime is 653677716127. The reversal of 653677716123 is 321617776356.

653677716123 is a `hidden beast` number, since 6 + 536 + 7 + 77 + 16 + 1 + 23 = 666.

It is not a de Polignac number, because 653677716123 - 2¹ = 653677716121 is a prime.

It is a super-2 number, since 2×653677716123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 653677716123.

It is not an unprimeable number, because it can be changed into a prime (653677716121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19434418 + ... + 19468023.

Almost surely, 2^653677716123 is an apocalyptic number.

653677716123 is a deficient number, since it is larger than the sum of its proper divisors (291029185405).

653677716123 is a wasteful number, since it uses less digits than its factorization.

653677716123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38904314 (or 38904311 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 54.

The spelling of 653677716123 in words is "six hundred fifty-three billion, six hundred seventy-seven million, seven hundred sixteen thousand, one hundred twenty-three".