23401981650320 has 160 divisors (see below), whose sum is σ = 66969146200320. Its totient is φ = 7405957048320.

The previous prime is 23401981650293. The next prime is 23401981650331. The reversal of 23401981650320 is 2305618910432.

It is a super-2 number, since 2×23401981650320² (a number of 28 digits) contains 22 as substring.

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, 161754815 + ... + 161899425.

It is an arithmetic number, because the mean of its divisors is an integer number (418557163752).

Almost surely, 2^{23401981650320} is an apocalyptic number.

23401981650320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23401981650320 is an abundant number, since it is smaller than the sum of its proper divisors (43567164550000).

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

23401981650320 is a wasteful number, since it uses less digits than its factorization.

23401981650320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166873 (or 166867 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 23401981650320 in words is "twenty-three trillion, four hundred one billion, nine hundred eighty-one million, six hundred fifty thousand, three hundred twenty".