66737373740734 has 32 divisors (see below), whose sum is σ = 106099121894400. Its totient is φ = 31374875492352.

The previous prime is 66737373740729. The next prime is 66737373740813. The reversal of 66737373740734 is 43704737373766.

It is a self number, because there is not a number n which added to its sum of digits gives 66737373740734.

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, 346802307 + ... + 346994689.

It is an arithmetic number, because the mean of its divisors is an integer number (3315597559200).

Almost surely, 2^{66737373740734} is an apocalyptic number.

66737373740734 is a deficient number, since it is larger than the sum of its proper divisors (39361748153666).

66737373740734 is a wasteful number, since it uses less digits than its factorization.

66737373740734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202404.

The product of its (nonzero) digits is 784147392, while the sum is 67.

The spelling of 66737373740734 in words is "sixty-six trillion, seven hundred thirty-seven billion, three hundred seventy-three million, seven hundred forty thousand, seven hundred thirty-four".