66746950 has 24 divisors (see below), whose sum is σ = 124476408. Its totient is φ = 26628480.

The previous prime is 66746929. The next prime is 66746959. The reversal of 66746950 is 5964766.

It is a junction number, because it is equal to n+sod(n) for n = 66746897 and 66746906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66746959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20109 + ... + 23191.

It is an arithmetic number, because the mean of its divisors is an integer number (5186517).

Almost surely, 2^66746950 is an apocalyptic number.

66746950 is a deficient number, since it is larger than the sum of its proper divisors (57729458).

66746950 is a wasteful number, since it uses less digits than its factorization.

66746950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528 (or 3523 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 66746950 is about 8169.8806600831. The cubic root of 66746950 is about 405.6428342281.

The spelling of 66746950 in words is "sixty-six million, seven hundred forty-six thousand, nine hundred fifty".