66122150 has 12 divisors (see below), whose sum is σ = 122987292. Its totient is φ = 26448840.

The previous prime is 66122137. The next prime is 66122153. The reversal of 66122150 is 5122166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66122153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 661172 + ... + 661271.

It is an arithmetic number, because the mean of its divisors is an integer number (10248941).

Almost surely, 2^66122150 is an apocalyptic number.

66122150 is a deficient number, since it is larger than the sum of its proper divisors (56865142).

66122150 is a wasteful number, since it uses less digits than its factorization.

66122150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322455 (or 1322450 counting only the distinct ones).

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

The square root of 66122150 is about 8131.5527422504. The cubic root of 66122150 is about 404.3731602677.

The spelling of 66122150 in words is "sixty-six million, one hundred twenty-two thousand, one hundred fifty".