76770213566 has 8 divisors (see below), whose sum is σ = 115156496664. Its totient is φ = 38384714680.

The previous prime is 76770213557. The next prime is 76770213571. The reversal of 76770213566 is 66531207767.

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

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, 276176 + ... + 479388.

It is an arithmetic number, because the mean of its divisors is an integer number (14394562083).

Almost surely, 2^76770213566 is an apocalyptic number.

76770213566 is a deficient number, since it is larger than the sum of its proper divisors (38386283098).

76770213566 is a wasteful number, since it uses less digits than its factorization.

76770213566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392106.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 76770213566 in words is "seventy-six billion, seven hundred seventy million, two hundred thirteen thousand, five hundred sixty-six".