61520360502 has 32 divisors (see below), whose sum is σ = 126387878400. Its totient is φ = 19949118048.

The previous prime is 61520360501. The next prime is 61520360513. The reversal of 61520360502 is 20506302516.

61520360502 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 61520360502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61520360501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1484499 + ... + 1525377.

It is an arithmetic number, because the mean of its divisors is an integer number (3949621200).

Almost surely, 2^61520360502 is an apocalyptic number.

61520360502 is an abundant number, since it is smaller than the sum of its proper divisors (64867517898).

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

61520360502 is a wasteful number, since it uses less digits than its factorization.

61520360502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47700.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 61520360502 in words is "sixty-one billion, five hundred twenty million, three hundred sixty thousand, five hundred two".