55626341661 has 24 divisors (see below), whose sum is σ = 88069082400. Its totient is φ = 33553144800.

The previous prime is 55626341657. The next prime is 55626341663. The reversal of 55626341661 is 16614362655.

55626341661 is a `hidden beast` number, since 5 + 5 + 6 + 2 + 634 + 1 + 6 + 6 + 1 = 666.

It is not a de Polignac number, because 55626341661 - 2² = 55626341657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55626341663) 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, 1310586 + ... + 1352363.

It is an arithmetic number, because the mean of its divisors is an integer number (3669545100).

Almost surely, 2^55626341661 is an apocalyptic number.

It is an amenable number.

55626341661 is a deficient number, since it is larger than the sum of its proper divisors (32442740739).

55626341661 is a wasteful number, since it uses less digits than its factorization.

55626341661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663177 (or 2663174 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 55626341661 in words is "fifty-five billion, six hundred twenty-six million, three hundred forty-one thousand, six hundred sixty-one".