55266644040 has 32 divisors (see below), whose sum is σ = 165799932480. Its totient is φ = 14737771712.

The previous prime is 55266644033. The next prime is 55266644051. The reversal of 55266644040 is 4044666255.

It is a junction number, because it is equal to n+sod(n) for n = 55266643983 and 55266644001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230277564 + ... + 230277803.

It is an arithmetic number, because the mean of its divisors is an integer number (5181247890).

Almost surely, 2^55266644040 is an apocalyptic number.

It is an amenable number.

55266644040 is an abundant number, since it is smaller than the sum of its proper divisors (110533288440).

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

55266644040 is a wasteful number, since it uses less digits than its factorization.

55266644040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460555381 (or 460555377 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 55266644040 in words is "fifty-five billion, two hundred sixty-six million, six hundred forty-four thousand, forty".