76646155072 has 28 divisors (see below), whose sum is σ = 152121713536. Its totient is φ = 38316274560.

The previous prime is 76646155051. The next prime is 76646155093. The reversal of 76646155072 is 27055164667.

It is an interprime number because it is at equal distance from previous prime (76646155051) and next prime (76646155093).

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, 267223 + ... + 474025.

Almost surely, 2^76646155072 is an apocalyptic number.

It is an amenable number.

76646155072 is a deficient number, since it is larger than the sum of its proper divisors (75475558464).

76646155072 is a wasteful number, since it uses less digits than its factorization.

76646155072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212606 (or 212596 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 76646155072 in words is "seventy-six billion, six hundred forty-six million, one hundred fifty-five thousand, seventy-two".