23664611670 has 128 divisors (see below), whose sum is σ = 67101253632. Its totient is φ = 5226854400.

The previous prime is 23664611603. The next prime is 23664611683. The reversal of 23664611670 is 7611646632.

It is a super-3 number, since 3×23664611670³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5186190 + ... + 5190750.

It is an arithmetic number, because the mean of its divisors is an integer number (524228544).

Almost surely, 2^23664611670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23664611670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33550626816).

23664611670 is an abundant number, since it is smaller than the sum of its proper divisors (43436641962).

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

23664611670 is a wasteful number, since it uses less digits than its factorization.

23664611670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 23664611670 in words is "twenty-three billion, six hundred sixty-four million, six hundred eleven thousand, six hundred seventy".