66462870 has 32 divisors (see below), whose sum is σ = 166447872. Its totient is φ = 16952672.

The previous prime is 66462857. The next prime is 66462883. The reversal of 66462870 is 7826466.

It is an interprime number because it is at equal distance from previous prime (66462857) and next prime (66462883).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47472 + ... + 48851.

It is an arithmetic number, because the mean of its divisors is an integer number (5201496).

Almost surely, 2^66462870 is an apocalyptic number.

66462870 is an abundant number, since it is smaller than the sum of its proper divisors (99985002).

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

66462870 is a wasteful number, since it uses less digits than its factorization.

66462870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96356.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 66462870 is about 8152.4763109131. The cubic root of 66462870 is about 405.0665338032.

The spelling of 66462870 in words is "sixty-six million, four hundred sixty-two thousand, eight hundred seventy".