77516466 has 16 divisors (see below), whose sum is σ = 163192800. Its totient is φ = 24478848.

The previous prime is 77516441. The next prime is 77516473. The reversal of 77516466 is 66461577.

It is a super-2 number, since 2×77516466² = 12017605002258312, which contains 22 as substring.

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, 339871 + ... + 340098.

It is an arithmetic number, because the mean of its divisors is an integer number (10199550).

Almost surely, 2^77516466 is an apocalyptic number.

77516466 is an abundant number, since it is smaller than the sum of its proper divisors (85676334).

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

77516466 is a wasteful number, since it uses less digits than its factorization.

77516466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679993.

The product of its digits is 211680, while the sum is 42.

The square root of 77516466 is about 8804.3435871165. The cubic root of 77516466 is about 426.3811418419.

The spelling of 77516466 in words is "seventy-seven million, five hundred sixteen thousand, four hundred sixty-six".