55626223661 has 8 divisors (see below), whose sum is σ = 56271643200. Its totient is φ = 54981257760.

The previous prime is 55626223657. The next prime is 55626223663. The reversal of 55626223661 is 16632262655.

55626223661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55626223661 - 2² = 55626223657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55626223663) 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, 136430 + ... + 360368.

It is an arithmetic number, because the mean of its divisors is an integer number (7033955400).

Almost surely, 2^55626223661 is an apocalyptic number.

It is an amenable number.

55626223661 is a deficient number, since it is larger than the sum of its proper divisors (645419539).

55626223661 is a wasteful number, since it uses less digits than its factorization.

55626223661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226819.

The product of its digits is 777600, while the sum is 44.

The spelling of 55626223661 in words is "fifty-five billion, six hundred twenty-six million, two hundred twenty-three thousand, six hundred sixty-one".