61662168 has 32 divisors (see below), whose sum is σ = 171284400. Its totient is φ = 20553984.

The previous prime is 61662157. The next prime is 61662173. The reversal of 61662168 is 86126616.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142521 + ... + 142952.

Almost surely, 2^61662168 is an apocalyptic number.

It is an amenable number.

61662168 is an abundant number, since it is smaller than the sum of its proper divisors (109622232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61662168 is a wasteful number, since it uses less digits than its factorization.

61662168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285488 (or 285478 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 61662168 is about 7852.5262177213. The cubic root of 61662168 is about 395.0689790339.

The spelling of 61662168 in words is "sixty-one million, six hundred sixty-two thousand, one hundred sixty-eight".