83137604220 has 144 divisors (see below), whose sum is σ = 289589489280. Its totient is φ = 19093795200.

The previous prime is 83137604197. The next prime is 83137604227. The reversal of 83137604220 is 2240673138.

It is a happy number.

It is a super-2 number, since 2×83137604220² (a number of 23 digits) contains 22 as substring.

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 (83137604227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1067346 + ... + 1142585.

It is an arithmetic number, because the mean of its divisors is an integer number (2011038120).

Almost surely, 2^83137604220 is an apocalyptic number.

It is an amenable number.

83137604220 is an abundant number, since it is smaller than the sum of its proper divisors (206451885060).

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

83137604220 is a wasteful number, since it uses less digits than its factorization.

83137604220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209976 (or 2209971 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 83137604220 in words is "eighty-three billion, one hundred thirty-seven million, six hundred four thousand, two hundred twenty".