66201713842 has 48 divisors (see below), whose sum is σ = 110326206816. Its totient is φ = 29768446400.

The previous prime is 66201713797. The next prime is 66201713843. The reversal of 66201713842 is 24831710266.

It is a junction number, because it is equal to n+sod(n) for n = 66201713795 and 66201713804.

It is not an unprimeable number, because it can be changed into a prime (66201713843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25141758 + ... + 25144390.

It is an arithmetic number, because the mean of its divisors is an integer number (2298462642).

Almost surely, 2^66201713842 is an apocalyptic number.

66201713842 is a deficient number, since it is larger than the sum of its proper divisors (44124492974).

66201713842 is a wasteful number, since it uses less digits than its factorization.

66201713842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 66201713842 in words is "sixty-six billion, two hundred one million, seven hundred thirteen thousand, eight hundred forty-two".