55651055404266 has 128 divisors (see below), whose sum is σ = 148779766425600. Its totient is φ = 15062935789440.

The previous prime is 55651055404223. The next prime is 55651055404283. The reversal of 55651055404266 is 66240455015655.

55651055404266 is a `hidden beast` number, since 5 + 5 + 6 + 51 + 0 + 5 + 540 + 42 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 244957846 + ... + 245184926.

It is an arithmetic number, because the mean of its divisors is an integer number (1162341925200).

Almost surely, 2^{55651055404266} is an apocalyptic number.

55651055404266 is an abundant number, since it is smaller than the sum of its proper divisors (93128711021334).

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

55651055404266 is a wasteful number, since it uses less digits than its factorization.

55651055404266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261241 (or 261235 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 54.

The spelling of 55651055404266 in words is "fifty-five trillion, six hundred fifty-one billion, fifty-five million, four hundred four thousand, two hundred sixty-six".