61201641444 has 24 divisors (see below), whose sum is σ = 142835599200. Its totient is φ = 20396008704.

The previous prime is 61201641439. The next prime is 61201641541. The reversal of 61201641444 is 44414610216.

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, 510894 + ... + 619205.

It is an arithmetic number, because the mean of its divisors is an integer number (5951483300).

Almost surely, 2^61201641444 is an apocalyptic number.

It is an amenable number.

61201641444 is an abundant number, since it is smaller than the sum of its proper divisors (81633957756).

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

61201641444 is a wasteful number, since it uses less digits than its factorization.

61201641444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134619 (or 1134617 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 61201641444 in words is "sixty-one billion, two hundred one million, six hundred forty-one thousand, four hundred forty-four".