83616331421 has 8 divisors (see below), whose sum is σ = 97783882944. Its totient is φ = 70004370240.

The previous prime is 83616331411. The next prime is 83616331453. The reversal of 83616331421 is 12413361638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83616331421 - 2¹⁴ = 83616315037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83616331411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138897260 + ... + 138897861.

It is an arithmetic number, because the mean of its divisors is an integer number (12222985368).

Almost surely, 2^83616331421 is an apocalyptic number.

It is an amenable number.

83616331421 is a deficient number, since it is larger than the sum of its proper divisors (14167551523).

83616331421 is a wasteful number, since it uses less digits than its factorization.

83616331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277795171.

The product of its digits is 62208, while the sum is 38.

The spelling of 83616331421 in words is "eighty-three billion, six hundred sixteen million, three hundred thirty-one thousand, four hundred twenty-one".