66034270698 has 16 divisors (see below), whose sum is σ = 144074772576. Its totient is φ = 20010385040.

The previous prime is 66034270691. The next prime is 66034270711. The reversal of 66034270698 is 89607243066.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66034270698.

It is not an unprimeable number, because it can be changed into a prime (66034270691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500259561 + ... + 500259692.

It is an arithmetic number, because the mean of its divisors is an integer number (9004673286).

Almost surely, 2^66034270698 is an apocalyptic number.

66034270698 is an abundant number, since it is smaller than the sum of its proper divisors (78040501878).

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

66034270698 is a wasteful number, since it uses less digits than its factorization.

66034270698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000519269.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 66034270698 in words is "sixty-six billion, thirty-four million, two hundred seventy thousand, six hundred ninety-eight".