23161614040 has 64 divisors (see below), whose sum is σ = 53940015360. Its totient is φ = 8941570560.

The previous prime is 23161614029. The next prime is 23161614083. The reversal of 23161614040 is 4041616132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437482 + ... + 487558.

It is an arithmetic number, because the mean of its divisors is an integer number (842812740).

Almost surely, 2^23161614040 is an apocalyptic number.

23161614040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23161614040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26970007680).

23161614040 is an abundant number, since it is smaller than the sum of its proper divisors (30778401320).

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

23161614040 is a wasteful number, since it uses less digits than its factorization.

23161614040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50492 (or 50488 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 23161614040 in words is "twenty-three billion, one hundred sixty-one million, six hundred fourteen thousand, forty".