76622666101 has 4 divisors (see below), whose sum is σ = 81129881772. Its totient is φ = 72115450432.

The previous prime is 76622666059. The next prime is 76622666177. The reversal of 76622666101 is 10166622667.

It is a happy number.

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 66672404100 + 9950262001 = 258210^2 + 99751^2 .

It is a cyclic number.

It is not a de Polignac number, because 76622666101 - 2²⁹ = 76085795189 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 (76622666191) 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, 2253607810 + ... + 2253607843.

It is an arithmetic number, because the mean of its divisors is an integer number (20282470443).

Almost surely, 2^76622666101 is an apocalyptic number.

It is an amenable number.

76622666101 is a deficient number, since it is larger than the sum of its proper divisors (4507215671).

76622666101 is a wasteful number, since it uses less digits than its factorization.

76622666101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507215670.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 76622666101 in words is "seventy-six billion, six hundred twenty-two million, six hundred sixty-six thousand, one hundred one".