66617157702 has 16 divisors (see below), whose sum is σ = 133251889392. Its totient is φ = 22202790240.

The previous prime is 66617157683. The next prime is 66617157721. The reversal of 66617157702 is 20775171666.

It is an interprime number because it is at equal distance from previous prime (66617157683) and next prime (66617157721).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682713 + ... + 774164.

It is an arithmetic number, because the mean of its divisors is an integer number (8328243087).

Almost surely, 2^66617157702 is an apocalyptic number.

66617157702 is an abundant number, since it is smaller than the sum of its proper divisors (66634731690).

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

66617157702 is a wasteful number, since it uses less digits than its factorization.

66617157702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464503.

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 66617157702 in words is "sixty-six billion, six hundred seventeen million, one hundred fifty-seven thousand, seven hundred two".