23017965353640 has 128 divisors (see below), whose sum is σ = 78800241888000. Its totient is φ = 5972228838144.

The previous prime is 23017965353629. The next prime is 23017965353651. The reversal of 23017965353640 is 4635356971032.

23017965353640 is a `hidden beast` number, since 2 + 3 + 0 + 1 + 7 + 9 + 65 + 3 + 536 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (23017965353629) and next prime (23017965353651).

It is a super-2 number, since 2×23017965353640² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287972620 + ... + 288052539.

It is an arithmetic number, because the mean of its divisors is an integer number (615626889750).

Almost surely, 2^{23017965353640} is an apocalyptic number.

23017965353640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23017965353640 is an abundant number, since it is smaller than the sum of its proper divisors (55782276534360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23017965353640 is a wasteful number, since it uses less digits than its factorization.

23017965353640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576025216 (or 576025206 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 54.

The spelling of 23017965353640 in words is "twenty-three trillion, seventeen billion, nine hundred sixty-five million, three hundred fifty-three thousand, six hundred forty".