65761272 has 48 divisors (see below), whose sum is σ = 181902240. Its totient is φ = 21452928.

The previous prime is 65761271. The next prime is 65761291. The reversal of 65761272 is 27216756.

65761272 is a `hidden beast` number, since 6 + 576 + 12 + 72 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65761271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6333 + ... + 13100.

It is an arithmetic number, because the mean of its divisors is an integer number (3789630).

Almost surely, 2^65761272 is an apocalyptic number.

It is an amenable number.

65761272 is an abundant number, since it is smaller than the sum of its proper divisors (116140968).

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

65761272 is a wasteful number, since it uses less digits than its factorization.

65761272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19492 (or 19485 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 65761272 is about 8109.3324016222. The cubic root of 65761272 is about 403.6361623170.

The spelling of 65761272 in words is "sixty-five million, seven hundred sixty-one thousand, two hundred seventy-two".