61506366192 has 120 divisors (see below), whose sum is σ = 182619740160. Its totient is φ = 19270016640.

The previous prime is 61506366169. The next prime is 61506366203. The reversal of 61506366192 is 29166360516.

61506366192 is a `hidden beast` number, since 6 + 1 + 5 + 0 + 636 + 6 + 1 + 9 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258967 + ... + 435977.

It is an arithmetic number, because the mean of its divisors is an integer number (1521831168).

Almost surely, 2^61506366192 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 61506366192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91309870080).

61506366192 is an abundant number, since it is smaller than the sum of its proper divisors (121113373968).

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

61506366192 is a wasteful number, since it uses less digits than its factorization.

61506366192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177171 (or 177162 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 61506366192 in words is "sixty-one billion, five hundred six million, three hundred sixty-six thousand, one hundred ninety-two".