66193150 has 24 divisors (see below), whose sum is σ = 129601080. Its totient is φ = 25083360.

The previous prime is 66193139. The next prime is 66193181. The reversal of 66193150 is 5139166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33889 + ... + 35788.

It is an arithmetic number, because the mean of its divisors is an integer number (5400045).

Almost surely, 2^66193150 is an apocalyptic number.

66193150 is a deficient number, since it is larger than the sum of its proper divisors (63407930).

66193150 is a wasteful number, since it uses less digits than its factorization.

66193150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69708 (or 69703 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 66193150 is about 8135.9172807988. The cubic root of 66193150 is about 404.5178431228.

The spelling of 66193150 in words is "sixty-six million, one hundred ninety-three thousand, one hundred fifty".