61350141140 has 48 divisors (see below), whose sum is σ = 130175594640. Its totient is φ = 24285004800.

The previous prime is 61350141137. The next prime is 61350141163. The reversal of 61350141140 is 4114105316.

It can be written as a sum of positive squares in 8 ways, for example, as 7412865604 + 53937275536 = 86098^2 + 232244^2 .

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, 4819424 + ... + 4832136.

It is an arithmetic number, because the mean of its divisors is an integer number (2711991555).

Almost surely, 2^61350141140 is an apocalyptic number.

It is an amenable number.

61350141140 is an abundant number, since it is smaller than the sum of its proper divisors (68825453500).

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

61350141140 is a wasteful number, since it uses less digits than its factorization.

61350141140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15212 (or 15210 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 61350141140 its reverse (4114105316), we get a palindrome (65464246456).

The spelling of 61350141140 in words is "sixty-one billion, three hundred fifty million, one hundred forty-one thousand, one hundred forty".