55870661040 has 40 divisors (see below), whose sum is σ = 173199049968. Its totient is φ = 14898842880.

The previous prime is 55870661017. The next prime is 55870661107. The reversal of 55870661040 is 4016607855.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 55870660983 and 55870661001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116396971 + ... + 116397450.

Almost surely, 2^55870661040 is an apocalyptic number.

It is an amenable number.

55870661040 is an abundant number, since it is smaller than the sum of its proper divisors (117328388928).

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

55870661040 is a wasteful number, since it uses less digits than its factorization.

55870661040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232794437 (or 232794431 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 55870661040 in words is "fifty-five billion, eight hundred seventy million, six hundred sixty-one thousand, forty".