23506650040 has 64 divisors (see below), whose sum is σ = 57303560160. Its totient is φ = 8643747840.

The previous prime is 23506650017. The next prime is 23506650053. The reversal of 23506650040 is 4005660532.

It is a super-2 number, since 2×23506650040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23506649984 and 23506650011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372721 + ... + 431200.

Almost surely, 2^23506650040 is an apocalyptic number.

23506650040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23506650040 is an abundant number, since it is smaller than the sum of its proper divisors (33796910120).

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

23506650040 is a wasteful number, since it uses less digits than its factorization.

23506650040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803992 (or 803988 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 23506650040 in words is "twenty-three billion, five hundred six million, six hundred fifty thousand, forty".