66773101 has 8 divisors (see below), whose sum is σ = 70059008. Its totient is φ = 63558000.

The previous prime is 66773089. The next prime is 66773107. The reversal of 66773101 is 10137766.

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

It is a cyclic number.

It is not a de Polignac number, because 66773101 - 2²³ = 58384493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66773107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15765 + ... + 19546.

It is an arithmetic number, because the mean of its divisors is an integer number (8757376).

Almost surely, 2^66773101 is an apocalyptic number.

66773101 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

66773101 is a deficient number, since it is larger than the sum of its proper divisors (3285907).

66773101 is a wasteful number, since it uses less digits than its factorization.

66773101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35403.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 66773101 is about 8171.4809551268. The cubic root of 66773101 is about 405.6958033435.

The spelling of 66773101 in words is "sixty-six million, seven hundred seventy-three thousand, one hundred one".