66762615743705 has 16 divisors (see below), whose sum is σ = 91994093145984. Its totient is φ = 45563112161280.

The previous prime is 66762615743687. The next prime is 66762615743783. The reversal of 66762615743705 is 50734751626766.

It is not a de Polignac number, because 66762615743705 - 2¹⁸ = 66762615481561 is a prime.

It is a Duffinian 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, 4520142632 + ... + 4520157401.

It is an arithmetic number, because the mean of its divisors is an integer number (5749630821624).

Almost surely, 2^{66762615743705} is an apocalyptic number.

It is an amenable number.

66762615743705 is a deficient number, since it is larger than the sum of its proper divisors (25231477402279).

66762615743705 is a wasteful number, since it uses less digits than its factorization.

66762615743705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040300256.

The product of its (nonzero) digits is 266716800, while the sum is 65.

The spelling of 66762615743705 in words is "sixty-six trillion, seven hundred sixty-two billion, six hundred fifteen million, seven hundred forty-three thousand, seven hundred five".