66736740070038 has 32 divisors (see below), whose sum is σ = 135558471093120. Its totient is φ = 21898536675840.

The previous prime is 66736740070009. The next prime is 66736740070051. The reversal of 66736740070038 is 83007004763766.

It is a self number, because there is not a number n which added to its sum of digits gives 66736740070038.

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, 56305803 + ... + 57478838.

It is an arithmetic number, because the mean of its divisors is an integer number (4236202221660).

Almost surely, 2^{66736740070038} is an apocalyptic number.

66736740070038 is an abundant number, since it is smaller than the sum of its proper divisors (68821731023082).

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

66736740070038 is a wasteful number, since it uses less digits than its factorization.

66736740070038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113786172.

The product of its (nonzero) digits is 21337344, while the sum is 57.

The spelling of 66736740070038 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred forty million, seventy thousand, thirty-eight".