65228037500 has 36 divisors (see below), whose sum is σ = 142677227448. Its totient is φ = 26091210000.

The previous prime is 65228037493. The next prime is 65228037503. The reversal of 65228037500 is 573082256.

It is a super-2 number, since 2×65228037500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65228037503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2596622 + ... + 2621621.

It is an arithmetic number, because the mean of its divisors is an integer number (3963256318).

Almost surely, 2^65228037500 is an apocalyptic number.

It is an amenable number.

65228037500 is an abundant number, since it is smaller than the sum of its proper divisors (77449189948).

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

65228037500 is an equidigital number, since it uses as much as digits as its factorization.

65228037500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218272 (or 5218250 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 65228037500 in words is "sixty-five billion, two hundred twenty-eight million, thirty-seven thousand, five hundred".