1250791966 has 16 divisors (see below), whose sum is σ = 1987273440. Its totient is φ = 588394240.

The previous prime is 1250791943. The next prime is 1250791967. The reversal of 1250791966 is 6691970521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250791967) 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, 127215 + ... + 136693.

It is an arithmetic number, because the mean of its divisors is an integer number (124204590).

Almost surely, 2^1250791966 is an apocalyptic number.

1250791966 is a deficient number, since it is larger than the sum of its proper divisors (736481474).

1250791966 is a wasteful number, since it uses less digits than its factorization.

1250791966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13379.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1250791966 is about 35366.5373764523. The cubic root of 1250791966 is about 1077.4447955237. Note that the first 3 decimals are identical.

The spelling of 1250791966 in words is "one billion, two hundred fifty million, seven hundred ninety-one thousand, nine hundred sixty-six".