80210517551 has 4 divisors (see below), whose sum is σ = 80211888912. Its totient is φ = 80209146192.

The previous prime is 80210517533. The next prime is 80210517571. The reversal of 80210517551 is 15571501208.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80210517551 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 (80210517521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593846 + ... + 716291.

It is an arithmetic number, because the mean of its divisors is an integer number (20052972228).

Almost surely, 2^80210517551 is an apocalyptic number.

80210517551 is a deficient number, since it is larger than the sum of its proper divisors (1371361).

80210517551 is a wasteful number, since it uses less digits than its factorization.

80210517551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371360.

The product of its (nonzero) digits is 14000, while the sum is 35.

The spelling of 80210517551 in words is "eighty billion, two hundred ten million, five hundred seventeen thousand, five hundred fifty-one".