66296765 has 8 divisors (see below), whose sum is σ = 79657728. Its totient is φ = 52969680.

The previous prime is 66296759. The next prime is 66296801. The reversal of 66296765 is 56769266.

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

It is not a de Polignac number, because 66296765 - 2⁴ = 66296749 is a prime.

It is a super-2 number, since 2×66296765² = 8790522098930450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3941 + ... + 12170.

It is an arithmetic number, because the mean of its divisors is an integer number (9957216).

Almost surely, 2^66296765 is an apocalyptic number.

It is an amenable number.

66296765 is a deficient number, since it is larger than the sum of its proper divisors (13360963).

66296765 is a wasteful number, since it uses less digits than its factorization.

66296765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16939.

The product of its digits is 816480, while the sum is 47.

The square root of 66296765 is about 8142.2825423833. The cubic root of 66296765 is about 404.7288028436.

It can be divided in two parts, 6629 and 6765, that multiplied together give a triangular number (44845185 = T₉₄₇₀).

The spelling of 66296765 in words is "sixty-six million, two hundred ninety-six thousand, seven hundred sixty-five".