61176020140 has 48 divisors (see below), whose sum is σ = 137429091072. Its totient is φ = 22793527296.

The previous prime is 61176020131. The next prime is 61176020153. The reversal of 61176020140 is 4102067116.

It is a junction number, because it is equal to n+sod(n) for n = 61176020099 and 61176020108.

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, 894492 + ... + 960451.

It is an arithmetic number, because the mean of its divisors is an integer number (2863106064).

Almost surely, 2^61176020140 is an apocalyptic number.

It is an amenable number.

61176020140 is an abundant number, since it is smaller than the sum of its proper divisors (76253070932).

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

61176020140 is a wasteful number, since it uses less digits than its factorization.

61176020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855066 (or 1855064 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

Adding to 61176020140 its reverse (4102067116), we get a palindrome (65278087256).

The spelling of 61176020140 in words is "sixty-one billion, one hundred seventy-six million, twenty thousand, one hundred forty".