660774214325 has 12 divisors (see below), whose sum is σ = 830900310048. Its totient is φ = 521174026800.

The previous prime is 660774214277. The next prime is 660774214333. The reversal of 660774214325 is 523412477066.

It is not a de Polignac number, because 660774214325 - 2¹⁰ = 660774213301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660774214325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186131807 + ... + 186135356.

It is an arithmetic number, because the mean of its divisors is an integer number (69241692504).

Almost surely, 2^660774214325 is an apocalyptic number.

It is an amenable number.

660774214325 is a deficient number, since it is larger than the sum of its proper divisors (170126095723).

660774214325 is a wasteful number, since it uses less digits than its factorization.

660774214325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372267244 (or 372267239 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 660774214325 in words is "six hundred sixty billion, seven hundred seventy-four million, two hundred fourteen thousand, three hundred twenty-five".