61230158940 has 48 divisors (see below), whose sum is σ = 171995765760. Its totient is φ = 16275535680.

The previous prime is 61230158921. The next prime is 61230158963. The reversal of 61230158940 is 4985103216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622020 + ... + 1659339.

It is an arithmetic number, because the mean of its divisors is an integer number (3583245120).

Almost surely, 2^61230158940 is an apocalyptic number.

61230158940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61230158940 is an abundant number, since it is smaller than the sum of its proper divisors (110765606820).

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

61230158940 is a wasteful number, since it uses less digits than its factorization.

61230158940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281682 (or 3281680 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 61230158940 in words is "sixty-one billion, two hundred thirty million, one hundred fifty-eight thousand, nine hundred forty".