66327401364 has 48 divisors (see below), whose sum is σ = 180482736000. Its totient is φ = 18950684928.

The previous prime is 66327401317. The next prime is 66327401407. The reversal of 66327401364 is 46310472366.

It is a super-2 number, since 2×66327401364² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 8053149 + ... + 8061380.

It is an arithmetic number, because the mean of its divisors is an integer number (3760057000).

Almost surely, 2^66327401364 is an apocalyptic number.

It is an amenable number.

66327401364 is an abundant number, since it is smaller than the sum of its proper divisors (114155334636).

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

66327401364 is a wasteful number, since it uses less digits than its factorization.

66327401364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16114557 (or 16114541 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 66327401364 in words is "sixty-six billion, three hundred twenty-seven million, four hundred one thousand, three hundred sixty-four".