61754008120 has 160 divisors (see below), whose sum is σ = 166058741520. Its totient is φ = 20655075840.

The previous prime is 61754008117. The next prime is 61754008157. The reversal of 61754008120 is 2180045716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3929799 + ... + 3945481.

Almost surely, 2^61754008120 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 61754008120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83029370760).

61754008120 is an abundant number, since it is smaller than the sum of its proper divisors (104304733400).

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

61754008120 is a wasteful number, since it uses less digits than its factorization.

61754008120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15763 (or 15738 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 61754008120 in words is "sixty-one billion, seven hundred fifty-four million, eight thousand, one hundred twenty".