55665061217070 has 64 divisors (see below), whose sum is σ = 143566008719616. Its totient is φ = 13762318901760.

The previous prime is 55665061217011. The next prime is 55665061217123. The reversal of 55665061217070 is 7071216056655.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814497016 + ... + 814565355.

It is an arithmetic number, because the mean of its divisors is an integer number (2243218886244).

Almost surely, 2^{55665061217070} is an apocalyptic number.

55665061217070 is an abundant number, since it is smaller than the sum of its proper divisors (87900947502546).

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

55665061217070 is a wasteful number, since it uses less digits than its factorization.

55665061217070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629062465.

The product of its (nonzero) digits is 2646000, while the sum is 51.

The spelling of 55665061217070 in words is "fifty-five trillion, six hundred sixty-five billion, sixty-one million, two hundred seventeen thousand, seventy".