66151004 has 6 divisors (see below), whose sum is σ = 115764264. Its totient is φ = 33075500.

The previous prime is 66150947. The next prime is 66151031. The reversal of 66151004 is 40015166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8268872 + ... + 8268879.

It is an arithmetic number, because the mean of its divisors is an integer number (19294044).

Almost surely, 2^66151004 is an apocalyptic number.

It is an amenable number.

66151004 is a deficient number, since it is larger than the sum of its proper divisors (49613260).

66151004 is a wasteful number, since it uses less digits than its factorization.

66151004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16537755 (or 16537753 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 66151004 is about 8133.3267486312. The cubic root of 66151004 is about 404.4319710515.

The spelling of 66151004 in words is "sixty-six million, one hundred fifty-one thousand, four".