83915661124 has 27 divisors (see below), whose sum is σ = 147710054583. Its totient is φ = 41714208000.

The previous prime is 83915661121. The next prime is 83915661127. The reversal of 83915661124 is 42116651938.

The square root of 83915661124 is 289682.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (83915661121) and next prime (83915661127).

It can be written as a sum of positive squares in 4 ways, for example, as 29831507524 + 54084153600 = 172718^2 + 232560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83915661121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 139626424 + ... + 139627024.

Almost surely, 2^83915661124 is an apocalyptic number.

83915661124 is the 289682-nd square number.

It is an amenable number.

83915661124 is a deficient number, since it is larger than the sum of its proper divisors (63794393459).

83915661124 is an frugal number, since it uses more digits than its factorization.

83915661124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688 (or 844 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The spelling of 83915661124 in words is "eighty-three billion, nine hundred fifteen million, six hundred sixty-one thousand, one hundred twenty-four".