77161248122 has 16 divisors (see below), whose sum is σ = 132281476800. Its totient is φ = 33067843488.

The previous prime is 77161248113. The next prime is 77161248149. The reversal of 77161248122 is 22184216177.

It is a self number, because there is not a number n which added to its sum of digits gives 77161248122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339173 + ... + 518999.

It is an arithmetic number, because the mean of its divisors is an integer number (8267592300).

Almost surely, 2^77161248122 is an apocalyptic number.

77161248122 is a deficient number, since it is larger than the sum of its proper divisors (55120228678).

77161248122 is a wasteful number, since it uses less digits than its factorization.

77161248122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210485.

The product of its digits is 75264, while the sum is 41.

The spelling of 77161248122 in words is "seventy-seven billion, one hundred sixty-one million, two hundred forty-eight thousand, one hundred twenty-two".