65400912 has 40 divisors (see below), whose sum is σ = 187726080. Its totient is φ = 21800160.

The previous prime is 65400899. The next prime is 65400913. The reversal of 65400912 is 21900456.

65400912 is a `hidden beast` number, since 654 + 0 + 0 + 9 + 1 + 2 = 666.

65400912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65400913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75264 + ... + 76127.

It is an arithmetic number, because the mean of its divisors is an integer number (4693152).

Almost surely, 2^65400912 is an apocalyptic number.

It is an amenable number.

65400912 is an abundant number, since it is smaller than the sum of its proper divisors (122325168).

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

65400912 is a wasteful number, since it uses less digits than its factorization.

65400912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151408 (or 151396 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 65400912 is about 8087.0830340735. The cubic root of 65400912 is about 402.8975268318.

The spelling of 65400912 in words is "sixty-five million, four hundred thousand, nine hundred twelve".