61515516162 has 16 divisors (see below), whose sum is σ = 124180856352. Its totient is φ = 20313534720.

The previous prime is 61515516133. The next prime is 61515516169. The reversal of 61515516162 is 26161551516.

It is a self number, because there is not a number n which added to its sum of digits gives 61515516162.

It is not an unprimeable number, because it can be changed into a prime (61515516169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47908639 + ... + 47909922.

It is an arithmetic number, because the mean of its divisors is an integer number (7761303522).

Almost surely, 2^61515516162 is an apocalyptic number.

61515516162 is an abundant number, since it is smaller than the sum of its proper divisors (62665340190).

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

61515516162 is a wasteful number, since it uses less digits than its factorization.

61515516162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95818673.

The product of its digits is 54000, while the sum is 39.

The spelling of 61515516162 in words is "sixty-one billion, five hundred fifteen million, five hundred sixteen thousand, one hundred sixty-two".