77055177071660 has 48 divisors (see below), whose sum is σ = 163535130825696. Its totient is φ = 30494791391232.

The previous prime is 77055177071641. The next prime is 77055177071699. The reversal of 77055177071660 is 6617077155077.

It is a self number, because there is not a number n which added to its sum of digits gives 77055177071660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13514 + ... + 12414126.

It is an arithmetic number, because the mean of its divisors is an integer number (3406981892202).

Almost surely, 2^{77055177071660} is an apocalyptic number.

It is an amenable number.

77055177071660 is an abundant number, since it is smaller than the sum of its proper divisors (86479953754036).

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

77055177071660 is a wasteful number, since it uses less digits than its factorization.

77055177071660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403922 (or 12403920 counting only the distinct ones).

The product of its (nonzero) digits is 15126300, while the sum is 59.

The spelling of 77055177071660 in words is "seventy-seven trillion, fifty-five billion, one hundred seventy-seven million, seventy-one thousand, six hundred sixty".