65772037240 has 64 divisors (see below), whose sum is σ = 182137959360. Its totient is φ = 20815764480.

The previous prime is 65772037237. The next prime is 65772037241. The reversal of 65772037240 is 4273027756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65772037241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9030981 + ... + 9038260.

It is an arithmetic number, because the mean of its divisors is an integer number (2845905615).

Almost surely, 2^65772037240 is an apocalyptic number.

It is an amenable number.

65772037240 is an abundant number, since it is smaller than the sum of its proper divisors (116365922120).

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

65772037240 is a wasteful number, since it uses less digits than its factorization.

65772037240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18069272 (or 18069268 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 65772037240 in words is "sixty-five billion, seven hundred seventy-two million, thirty-seven thousand, two hundred forty".