83121556414 has 64 divisors (see below), whose sum is σ = 140822519040. Its totient is φ = 36531855360.

The previous prime is 83121556403. The next prime is 83121556493. The reversal of 83121556414 is 41465512138.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22890379 + ... + 22894009.

It is an arithmetic number, because the mean of its divisors is an integer number (2200351860).

Almost surely, 2^83121556414 is an apocalyptic number.

83121556414 is a deficient number, since it is larger than the sum of its proper divisors (57700962626).

83121556414 is a wasteful number, since it uses less digits than its factorization.

83121556414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085.

The product of its digits is 115200, while the sum is 40.

The spelling of 83121556414 in words is "eighty-three billion, one hundred twenty-one million, five hundred fifty-six thousand, four hundred fourteen".