55616722758 has 12 divisors (see below), whose sum is σ = 120502899348. Its totient is φ = 18538907580.

The previous prime is 55616722757. The next prime is 55616722789. The reversal of 55616722758 is 85722761655.

55616722758 is a `hidden beast` number, since 5 + 561 + 6 + 7 + 2 + 2 + 75 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55616722757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1544908948 + ... + 1544908983.

It is an arithmetic number, because the mean of its divisors is an integer number (10041908279).

Almost surely, 2^55616722758 is an apocalyptic number.

55616722758 is an abundant number, since it is smaller than the sum of its proper divisors (64886176590).

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

55616722758 is a wasteful number, since it uses less digits than its factorization.

55616722758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089817939 (or 3089817936 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 54.

The spelling of 55616722758 in words is "fifty-five billion, six hundred sixteen million, seven hundred twenty-two thousand, seven hundred fifty-eight".