71642860266 has 32 divisors (see below), whose sum is σ = 152043490368. Its totient is φ = 22427421440.

The previous prime is 71642860243. The next prime is 71642860301. The reversal of 71642860266 is 66206824617.

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, 714780 + ... + 808823.

It is an arithmetic number, because the mean of its divisors is an integer number (4751359074).

Almost surely, 2^71642860266 is an apocalyptic number.

71642860266 is an abundant number, since it is smaller than the sum of its proper divisors (80400630102).

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

71642860266 is a wasteful number, since it uses less digits than its factorization.

71642860266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524086.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 71642860266 in words is "seventy-one billion, six hundred forty-two million, eight hundred sixty thousand, two hundred sixty-six".