65011923420 has 192 divisors, whose sum is σ = 198183874560. Its totient is φ = 15863040000.

The previous prime is 65011923409. The next prime is 65011923491. The reversal of 65011923420 is 2432911056.

65011923420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 21661920 + ... + 21664920.

It is an arithmetic number, because the mean of its divisors is an integer number (1032207680).

Almost surely, 2^65011923420 is an apocalyptic number.

65011923420 is a gapful number since it is divisible by the number (60) 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 65011923420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99091937280).

65011923420 is an abundant number, since it is smaller than the sum of its proper divisors (133171951140).

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

65011923420 is a wasteful number, since it uses less digits than its factorization.

65011923420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 65011923420 in words is "sixty-five billion, eleven million, nine hundred twenty-three thousand, four hundred twenty".