66956294 has 8 divisors (see below), whose sum is σ = 102571488. Its totient is φ = 32765800.

The previous prime is 66956291. The next prime is 66956297. The reversal of 66956294 is 49265966.

It is an interprime number because it is at equal distance from previous prime (66956291) and next prime (66956297).

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

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66956291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356057 + ... + 356244.

It is an arithmetic number, because the mean of its divisors is an integer number (12821436).

Almost surely, 2^66956294 is an apocalyptic number.

66956294 is a deficient number, since it is larger than the sum of its proper divisors (35615194).

66956294 is a wasteful number, since it uses less digits than its factorization.

66956294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712350.

The product of its digits is 699840, while the sum is 47.

The square root of 66956294 is about 8182.6825674714. The cubic root of 66956294 is about 406.0664754006.

The spelling of 66956294 in words is "sixty-six million, nine hundred fifty-six thousand, two hundred ninety-four".