65890463667 has 16 divisors (see below), whose sum is σ = 100413519360. Its totient is φ = 37648317312.

The previous prime is 65890463663. The next prime is 65890463689. The reversal of 65890463667 is 76636409856.

It is not a de Polignac number, because 65890463667 - 2² = 65890463663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65890463667.

It is not an unprimeable number, because it can be changed into a prime (65890463663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109434 + ... + 379152.

It is an arithmetic number, because the mean of its divisors is an integer number (6275844960).

Almost surely, 2^65890463667 is an apocalyptic number.

65890463667 is a deficient number, since it is larger than the sum of its proper divisors (34523055693).

65890463667 is a wasteful number, since it uses less digits than its factorization.

65890463667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281362.

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 65890463667 in words is "sixty-five billion, eight hundred ninety million, four hundred sixty-three thousand, six hundred sixty-seven".