71001040766 has 4 divisors (see below), whose sum is σ = 106501561152. Its totient is φ = 35500520382.

The previous prime is 71001040763. The next prime is 71001040843. The reversal of 71001040766 is 66704010017.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×71001040766² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71001040763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17750260190 + ... + 17750260193.

It is an arithmetic number, because the mean of its divisors is an integer number (26625390288).

Almost surely, 2^71001040766 is an apocalyptic number.

71001040766 is a deficient number, since it is larger than the sum of its proper divisors (35500520386).

71001040766 is a wasteful number, since it uses less digits than its factorization.

71001040766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35500520385.

The product of its (nonzero) digits is 7056, while the sum is 32.

The spelling of 71001040766 in words is "seventy-one billion, one million, forty thousand, seven hundred sixty-six".