80256066 has 32 divisors (see below), whose sum is σ = 175521600. Its totient is φ = 24262080.

The previous prime is 80256061. The next prime is 80256073. The reversal of 80256066 is 66065208.

It is a super-2 number, since 2×80256066² = 12882072259592712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (80256061) 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, 32400 + ... + 34788.

It is an arithmetic number, because the mean of its divisors is an integer number (5485050).

Almost surely, 2^80256066 is an apocalyptic number.

80256066 is an abundant number, since it is smaller than the sum of its proper divisors (95265534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80256066 is a wasteful number, since it uses less digits than its factorization.

80256066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 80256066 is about 8958.5749982907. The cubic root of 80256066 is about 431.3461795981.

The spelling of 80256066 in words is "eighty million, two hundred fifty-six thousand, sixty-six".