61126644 has 12 divisors (see below), whose sum is σ = 142628864. Its totient is φ = 20375544.

The previous prime is 61126621. The next prime is 61126657. The reversal of 61126644 is 44662116.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 2546932 + ... + 2546955.

Almost surely, 2^61126644 is an apocalyptic number.

It is an amenable number.

61126644 is an abundant number, since it is smaller than the sum of its proper divisors (81502220).

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

61126644 is a wasteful number, since it uses less digits than its factorization.

61126644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093894 (or 5093892 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 61126644 is about 7818.3530234954. The cubic root of 61126644 is about 393.9219528127.

The spelling of 61126644 in words is "sixty-one million, one hundred twenty-six thousand, six hundred forty-four".