945653866 has 32 divisors (see below), whose sum is σ = 1563287040. Its totient is φ = 427021056.

The previous prime is 945653843. The next prime is 945653869. The reversal of 945653866 is 668356549.

It is a super-2 number, since 2×945653866² = 1788522468561491912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (945653869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161791 + ... + 167533.

It is an arithmetic number, because the mean of its divisors is an integer number (48852720).

Almost surely, 2^945653866 is an apocalyptic number.

945653866 is a deficient number, since it is larger than the sum of its proper divisors (617633174).

945653866 is a wasteful number, since it uses less digits than its factorization.

945653866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958.

The product of its digits is 4665600, while the sum is 52.

The square root of 945653866 is about 30751.4855901304. The cubic root of 945653866 is about 981.5461730492.

The spelling of 945653866 in words is "nine hundred forty-five million, six hundred fifty-three thousand, eight hundred sixty-six".