66736136730 has 32 divisors (see below), whose sum is σ = 160314153984. Its totient is φ = 17779922496.

The previous prime is 66736136713. The next prime is 66736136827. The reversal of 66736136730 is 3763163766.

It is a self number, because there is not a number n which added to its sum of digits gives 66736136730.

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, 990637 + ... + 1055856.

It is an arithmetic number, because the mean of its divisors is an integer number (5009817312).

Almost surely, 2^66736136730 is an apocalyptic number.

66736136730 is an abundant number, since it is smaller than the sum of its proper divisors (93578017254).

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

66736136730 is a wasteful number, since it uses less digits than its factorization.

66736136730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047590.

The product of its (nonzero) digits is 1714608, while the sum is 48.

The spelling of 66736136730 in words is "sixty-six billion, seven hundred thirty-six million, one hundred thirty-six thousand, seven hundred thirty".