66201725140982 has 4 divisors (see below), whose sum is σ = 99302587711476. Its totient is φ = 33100862570490.

The previous prime is 66201725140913. The next prime is 66201725141033. The reversal of 66201725140982 is 28904152710266.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16550431285244 + ... + 16550431285247.

It is an arithmetic number, because the mean of its divisors is an integer number (24825646927869).

Almost surely, 2^{66201725140982} is an apocalyptic number.

66201725140982 is a deficient number, since it is larger than the sum of its proper divisors (33100862570494).

66201725140982 is a wasteful number, since it uses less digits than its factorization.

66201725140982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33100862570493.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 66201725140982 in words is "sixty-six trillion, two hundred one billion, seven hundred twenty-five million, one hundred forty thousand, nine hundred eighty-two".