61520202516 has 96 divisors (see below), whose sum is σ = 146278379520. Its totient is φ = 20121232000.

The previous prime is 61520202421. The next prime is 61520202533.

61520202516 is nontrivially palindromic in base 10.

61520202516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85563205 + ... + 85563923.

It is an arithmetic number, because the mean of its divisors is an integer number (1523733120).

Almost surely, 2^61520202516 is an apocalyptic number.

It is an amenable number.

61520202516 is an abundant number, since it is smaller than the sum of its proper divisors (84758177004).

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

61520202516 is a wasteful number, since it uses less digits than its factorization.

61520202516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 61520202516 in words is "sixty-one billion, five hundred twenty million, two hundred two thousand, five hundred sixteen".