55779234669 has 24 divisors (see below), whose sum is σ = 82320900480. Its totient is φ = 36378756288.

The previous prime is 55779234649. The next prime is 55779234673. The reversal of 55779234669 is 96643297755.

55779234669 is a `hidden beast` number, since 557 + 79 + 2 + 3 + 4 + 6 + 6 + 9 = 666.

It is not a de Polignac number, because 55779234669 - 2¹⁵ = 55779201901 is a prime.

It is a super-2 number, since 2×55779234669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55779234649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 961209 + ... + 1017585.

It is an arithmetic number, because the mean of its divisors is an integer number (3430037520).

Almost surely, 2^55779234669 is an apocalyptic number.

It is an amenable number.

55779234669 is a deficient number, since it is larger than the sum of its proper divisors (26541665811).

55779234669 is a wasteful number, since it uses less digits than its factorization.

55779234669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58769 (or 58766 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 63.

The spelling of 55779234669 in words is "fifty-five billion, seven hundred seventy-nine million, two hundred thirty-four thousand, six hundred sixty-nine".