66877896 has 16 divisors (see below), whose sum is σ = 167194800. Its totient is φ = 22292624.

The previous prime is 66877849. The next prime is 66877897. The reversal of 66877896 is 69877866.

It is not an unprimeable number, because it can be changed into a prime (66877897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393266 + ... + 1393313.

It is an arithmetic number, because the mean of its divisors is an integer number (10449675).

Almost surely, 2^66877896 is an apocalyptic number.

It is an amenable number.

66877896 is an abundant number, since it is smaller than the sum of its proper divisors (100316904).

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

66877896 is a wasteful number, since it uses less digits than its factorization.

66877896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786588 (or 2786584 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 57.

The square root of 66877896 is about 8177.8906815878. The cubic root of 66877896 is about 405.9079280325.

The spelling of 66877896 in words is "sixty-six million, eight hundred seventy-seven thousand, eight hundred ninety-six".