61622616 has 32 divisors (see below), whose sum is σ = 168062400. Its totient is φ = 18673440.

The previous prime is 61622611. The next prime is 61622653.

61622616 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61622611) 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, 116446 + ... + 116973.

It is an arithmetic number, because the mean of its divisors is an integer number (5251950).

Almost surely, 2^61622616 is an apocalyptic number.

61622616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61622616 is an abundant number, since it is smaller than the sum of its proper divisors (106439784).

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

61622616 is a wasteful number, since it uses less digits than its factorization.

61622616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233439 (or 233435 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 61622616 is about 7850.0073885316. The cubic root of 61622616 is about 394.9844911926.

It can be divided in two parts, 6162 and 2616, that added together give a palindrome (8778).

The spelling of 61622616 in words is "sixty-one million, six hundred twenty-two thousand, six hundred sixteen".