83121558883045 has 16 divisors (see below), whose sum is σ = 99985754466432. Its totient is φ = 66337333917120.

The previous prime is 83121558883037. The next prime is 83121558883063. The reversal of 83121558883045 is 54038885512138.

It is not a de Polignac number, because 83121558883045 - 2³ = 83121558883037 is a prime.

It is a super-2 number, since 2×83121558883045² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72777864 + ... + 73911166.

It is an arithmetic number, because the mean of its divisors is an integer number (6249109654152).

Almost surely, 2^{83121558883045} is an apocalyptic number.

It is an amenable number.

83121558883045 is a deficient number, since it is larger than the sum of its proper divisors (16864195583387).

83121558883045 is a wasteful number, since it uses less digits than its factorization.

83121558883045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168572.

The product of its (nonzero) digits is 36864000, while the sum is 61.

The spelling of 83121558883045 in words is "eighty-three trillion, one hundred twenty-one billion, five hundred fifty-eight million, eight hundred eighty-three thousand, forty-five".