61151199580 has 24 divisors (see below), whose sum is σ = 128781322992. Its totient is φ = 24391183872.

The previous prime is 61151199569. The next prime is 61151199587. The reversal of 61151199580 is 8599115116.

61151199580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61151199580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61151199587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4323762 + ... + 4337881.

It is an arithmetic number, because the mean of its divisors is an integer number (5365888458).

Almost surely, 2^61151199580 is an apocalyptic number.

It is an amenable number.

61151199580 is an abundant number, since it is smaller than the sum of its proper divisors (67630123412).

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

61151199580 is a wasteful number, since it uses less digits than its factorization.

61151199580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662005 (or 8662003 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 46.

The spelling of 61151199580 in words is "sixty-one billion, one hundred fifty-one million, one hundred ninety-nine thousand, five hundred eighty".