77066252000 has 96 divisors (see below), whose sum is σ = 190798511904. Its totient is φ = 30590976000.

The previous prime is 77066251991. The next prime is 77066252033. The reversal of 77066252000 is 25266077.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450464 + ... + 597536.

It is an arithmetic number, because the mean of its divisors is an integer number (1987484499).

Almost surely, 2^77066252000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77066252000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95399255952).

77066252000 is an abundant number, since it is smaller than the sum of its proper divisors (113732259904).

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

77066252000 is a wasteful number, since it uses less digits than its factorization.

77066252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147229 (or 147211 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 77066252000 in words is "seventy-seven billion, sixty-six million, two hundred fifty-two thousand".