61415122112 has 42 divisors (see below), whose sum is σ = 128622516948. Its totient is φ = 29091362688.

The previous prime is 61415122091. The next prime is 61415122187. The reversal of 61415122112 is 21122151416.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1305998 + ... + 1352205.

Almost surely, 2^61415122112 is an apocalyptic number.

It is an amenable number.

61415122112 is an abundant number, since it is smaller than the sum of its proper divisors (67207394836).

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

61415122112 is a wasteful number, since it uses less digits than its factorization.

61415122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658253 (or 2658224 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

Adding to 61415122112 its reverse (21122151416), we get a palindrome (82537273528).

The spelling of 61415122112 in words is "sixty-one billion, four hundred fifteen million, one hundred twenty-two thousand, one hundred twelve".