65150891 has 8 divisors (see below), whose sum is σ = 71794800. Its totient is φ = 58740192.

The previous prime is 65150879. The next prime is 65150893. The reversal of 65150891 is 19805156.

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

It is a cyclic number.

It is not a de Polignac number, because 65150891 - 2²² = 60956587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65150893) 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, 57716 + ... + 58833.

It is an arithmetic number, because the mean of its divisors is an integer number (8974350).

Almost surely, 2^65150891 is an apocalyptic number.

65150891 is a deficient number, since it is larger than the sum of its proper divisors (6643909).

65150891 is a wasteful number, since it uses less digits than its factorization.

65150891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116605.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 65150891 is about 8071.6101863259. The cubic root of 65150891 is about 402.3834591805.

The spelling of 65150891 in words is "sixty-five million, one hundred fifty thousand, eight hundred ninety-one".