65156851 has 2 divisors, whose sum is σ = 65156852. Its totient is φ = 65156850.

The previous prime is 65156843. The next prime is 65156857. The reversal of 65156851 is 15865156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65156851 - 2³ = 65156843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65156851.

It is not a weakly prime, because it can be changed into another prime (65156857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32578425 + 32578426.

It is an arithmetic number, because the mean of its divisors is an integer number (32578426).

Almost surely, 2^65156851 is an apocalyptic number.

65156851 is a deficient number, since it is larger than the sum of its proper divisors (1).

65156851 is an equidigital number, since it uses as much as digits as its factorization.

65156851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 37.

The square root of 65156851 is about 8071.9793731154. The cubic root of 65156851 is about 402.3957288121.

It can be divided in two parts, 6515 and 6851, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 65156851 in words is "sixty-five million, one hundred fifty-six thousand, eight hundred fifty-one".