61622664 has 16 divisors (see below), whose sum is σ = 154056720. Its totient is φ = 20540880.

The previous prime is 61622663. The next prime is 61622669. The reversal of 61622664 is 46622616.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (61622663) 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 3 ways as a sum of consecutive naturals, for example, 1283782 + ... + 1283829.

It is an arithmetic number, because the mean of its divisors is an integer number (9628545).

Almost surely, 2^61622664 is an apocalyptic number.

It is an amenable number.

61622664 is an abundant number, since it is smaller than the sum of its proper divisors (92434056).

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

61622664 is a wasteful number, since it uses less digits than its factorization.

61622664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567620 (or 2567616 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 61622664 is about 7850.0104458529. The cubic root of 61622664 is about 394.9845937483.

The spelling of 61622664 in words is "sixty-one million, six hundred twenty-two thousand, six hundred sixty-four".