83038766470565 has 4 divisors (see below), whose sum is σ = 99646519764684. Its totient is φ = 66431013176448.

The previous prime is 83038766470421. The next prime is 83038766470691. The reversal of 83038766470565 is 56507466783038.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40754868674116 + 42283897796449 = 6383954^2 + 6502607^2 .

It is a cyclic number.

It is not a de Polignac number, because 83038766470565 - 2²⁴ = 83038749693349 is a prime.

It is a super-2 number, since 2×83038766470565² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83038766470495 and 83038766470504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8303876647052 + ... + 8303876647061.

It is an arithmetic number, because the mean of its divisors is an integer number (24911629941171).

Almost surely, 2^{83038766470565} is an apocalyptic number.

It is an amenable number.

83038766470565 is a deficient number, since it is larger than the sum of its proper divisors (16607753294119).

83038766470565 is a wasteful number, since it uses less digits than its factorization.

83038766470565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16607753294118.

The product of its (nonzero) digits is 609638400, while the sum is 68.

The spelling of 83038766470565 in words is "eighty-three trillion, thirty-eight billion, seven hundred sixty-six million, four hundred seventy thousand, five hundred sixty-five".