456868158661 has 8 divisors (see below), whose sum is σ = 476841688344. Its totient is φ = 437315124480.

The previous prime is 456868158653. The next prime is 456868158679. The reversal of 456868158661 is 166851868654.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1664100 + 456866494561 = 1290^2 + 675919^2 .

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 456868158661 - 2³ = 456868158653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 456868158593 and 456868158602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456868158961) 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, 105121656 + ... + 105126001.

It is an arithmetic number, because the mean of its divisors is an integer number (59605211043).

Almost surely, 2^456868158661 is an apocalyptic number.

456868158661 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

456868158661 is a deficient number, since it is larger than the sum of its proper divisors (19973529683).

456868158661 is a wasteful number, since it uses less digits than its factorization.

456868158661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210247751.

The product of its digits is 66355200, while the sum is 64.

The spelling of 456868158661 in words is "four hundred fifty-six billion, eight hundred sixty-eight million, one hundred fifty-eight thousand, six hundred sixty-one".