975253666 has 16 divisors (see below), whose sum is σ = 1495880064. Its totient is φ = 476653104.

The previous prime is 975253663. The next prime is 975253681. The reversal of 975253666 is 666352579.

It is a happy number.

It is a super-2 number, since 2×975253666² = 1902239426092879112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (975253661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74101 + ... + 86263.

It is an arithmetic number, because the mean of its divisors is an integer number (93492504).

Almost surely, 2^975253666 is an apocalyptic number.

975253666 is a deficient number, since it is larger than the sum of its proper divisors (520626398).

975253666 is a wasteful number, since it uses less digits than its factorization.

975253666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065.

The product of its digits is 2041200, while the sum is 49.

The square root of 975253666 is about 31229.0516346558. The cubic root of 975253666 is about 991.6822284998.

The spelling of 975253666 in words is "nine hundred seventy-five million, two hundred fifty-three thousand, six hundred sixty-six".