71645198083 has 8 divisors (see below), whose sum is σ = 72063572400. Its totient is φ = 71227741728.

The previous prime is 71645198029. The next prime is 71645198101. The reversal of 71645198083 is 38089154617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71645198083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71645198083.

It is not an unprimeable number, because it can be changed into a prime (71645198483) 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, 72628 + ... + 385441.

It is an arithmetic number, because the mean of its divisors is an integer number (9007946550).

Almost surely, 2^71645198083 is an apocalyptic number.

71645198083 is a deficient number, since it is larger than the sum of its proper divisors (418374317).

71645198083 is a wasteful number, since it uses less digits than its factorization.

71645198083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458981.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 71645198083 in words is "seventy-one billion, six hundred forty-five million, one hundred ninety-eight thousand, eighty-three".