66146703020 has 48 divisors (see below), whose sum is σ = 145323739008. Its totient is φ = 25264112640.

The previous prime is 66146703001. The next prime is 66146703031. The reversal of 66146703020 is 2030764166.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819617 + ... + 896696.

It is an arithmetic number, because the mean of its divisors is an integer number (3027577896).

Almost surely, 2^66146703020 is an apocalyptic number.

It is an amenable number.

66146703020 is an abundant number, since it is smaller than the sum of its proper divisors (79177035988).

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

66146703020 is a wasteful number, since it uses less digits than its factorization.

66146703020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716410 (or 1716408 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 66146703020 in words is "sixty-six billion, one hundred forty-six million, seven hundred three thousand, twenty".