61372116 has 72 divisors (see below), whose sum is σ = 169513344. Its totient is φ = 18607680.

The previous prime is 61372111. The next prime is 61372139. The reversal of 61372116 is 61127316.

It is a self number, because there is not a number n which added to its sum of digits gives 61372116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61372111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32305 + ... + 34151.

It is an arithmetic number, because the mean of its divisors is an integer number (2354352).

Almost surely, 2^61372116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61372116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84756672).

61372116 is an abundant number, since it is smaller than the sum of its proper divisors (108141228).

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

61372116 is a wasteful number, since it uses less digits than its factorization.

61372116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1936 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 61372116 is about 7834.0357415575. The cubic root of 61372116 is about 394.4485516526.

The spelling of 61372116 in words is "sixty-one million, three hundred seventy-two thousand, one hundred sixteen".