66607747050 has 48 divisors (see below), whose sum is σ = 177893926560. Its totient is φ = 16395752640.

The previous prime is 66607747033. The next prime is 66607747061. The reversal of 66607747050 is 5074770666.

66607747050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17076960 + ... + 17080859.

It is an arithmetic number, because the mean of its divisors is an integer number (3706123470).

Almost surely, 2^66607747050 is an apocalyptic number.

66607747050 is an abundant number, since it is smaller than the sum of its proper divisors (111286179510).

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

66607747050 is a wasteful number, since it uses less digits than its factorization.

66607747050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34157847 (or 34157842 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 48.

The spelling of 66607747050 in words is "sixty-six billion, six hundred seven million, seven hundred forty-seven thousand, fifty".