66013220201250 has 160 divisors (see below), whose sum is σ = 196746623327232. Its totient is φ = 14432703912000.

The previous prime is 66013220201237. The next prime is 66013220201263. The reversal of 66013220201250 is 5210202231066.

It is an interprime number because it is at equal distance from previous prime (66013220201237) and next prime (66013220201263).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 54065584 + ... + 55273083.

Almost surely, 2^{66013220201250} is an apocalyptic number.

66013220201250 is an abundant number, since it is smaller than the sum of its proper divisors (130733403125982).

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

66013220201250 is a wasteful number, since it uses less digits than its factorization.

66013220201250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109338722 (or 109338707 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 66013220201250 in words is "sixty-six trillion, thirteen billion, two hundred twenty million, two hundred one thousand, two hundred fifty".