55777394662 has 16 divisors (see below), whose sum is σ = 91704677184. Its totient is φ = 25233201000.

The previous prime is 55777394657. The next prime is 55777394663. The reversal of 55777394662 is 26649377755.

It is a happy number.

It is a super-2 number, since 2×55777394662² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55777394662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55777394663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6003264 + ... + 6012547.

It is an arithmetic number, because the mean of its divisors is an integer number (5731542324).

Almost surely, 2^55777394662 is an apocalyptic number.

55777394662 is a deficient number, since it is larger than the sum of its proper divisors (35927282522).

55777394662 is a wasteful number, since it uses less digits than its factorization.

55777394662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016035.

The product of its digits is 66679200, while the sum is 61.

The spelling of 55777394662 in words is "fifty-five billion, seven hundred seventy-seven million, three hundred ninety-four thousand, six hundred sixty-two".