168622461 has 12 divisors (see below), whose sum is σ = 278360992. Its totient is φ = 96355656.

The previous prime is 168622457. The next prime is 168622469. The reversal of 168622461 is 164226861.

It is not a de Polignac number, because 168622461 - 2² = 168622457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168622469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1338211 + ... + 1338336.

Almost surely, 2^168622461 is an apocalyptic number.

It is an amenable number.

168622461 is a deficient number, since it is larger than the sum of its proper divisors (109738531).

168622461 is a wasteful number, since it uses less digits than its factorization.

168622461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676560 (or 2676557 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 168622461 is about 12985.4711504820. The cubic root of 168622461 is about 552.4654726142.

The spelling of 168622461 in words is "one hundred sixty-eight million, six hundred twenty-two thousand, four hundred sixty-one".