66251006 has 8 divisors (see below), whose sum is σ = 105222240. Its totient is φ = 31176928.

The previous prime is 66250997. The next prime is 66251021. The reversal of 66251006 is 60015266.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974246 + ... + 974313.

It is an arithmetic number, because the mean of its divisors is an integer number (13152780).

Almost surely, 2^66251006 is an apocalyptic number.

66251006 is a deficient number, since it is larger than the sum of its proper divisors (38971234).

66251006 is a wasteful number, since it uses less digits than its factorization.

66251006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948578.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66251006 is about 8139.4720959040. The cubic root of 66251006 is about 404.6356648257.

The spelling of 66251006 in words is "sixty-six million, two hundred fifty-one thousand, six".