66461703 has 32 divisors (see below), whose sum is σ = 113068032. Its totient is φ = 33717600.

The previous prime is 66461683. The next prime is 66461719. The reversal of 66461703 is 30716466.

It is not a de Polignac number, because 66461703 - 2¹⁸ = 66199559 is a prime.

It is a super-4 number, since 4×66461703⁴ (a number of 32 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66461723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6588 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (3533376).

Almost surely, 2^66461703 is an apocalyptic number.

66461703 is a deficient number, since it is larger than the sum of its proper divisors (46606329).

66461703 is a wasteful number, since it uses less digits than its factorization.

66461703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 66461703 is about 8152.4047372539. The cubic root of 66461703 is about 405.0641629786.

The spelling of 66461703 in words is "sixty-six million, four hundred sixty-one thousand, seven hundred three".