76551516 has 18 divisors (see below), whose sum is σ = 193505312. Its totient is φ = 25517160.

The previous prime is 76551491. The next prime is 76551529. The reversal of 76551516 is 61515567.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2126431 = 76551516 / (7 + 6 + 5 + 5 + 1 + 5 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1063180 + ... + 1063251.

Almost surely, 2^76551516 is an apocalyptic number.

It is an amenable number.

76551516 is an abundant number, since it is smaller than the sum of its proper divisors (116953796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76551516 is a wasteful number, since it uses less digits than its factorization.

76551516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126441 (or 2126436 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 76551516 is about 8749.3723203439. The cubic root of 76551516 is about 424.6045058952.

The spelling of 76551516 in words is "seventy-six million, five hundred fifty-one thousand, five hundred sixteen".