61111150666512 has 40 divisors (see below), whose sum is σ = 161541878899104. Its totient is φ = 19896653704704.

The previous prime is 61111150666403. The next prime is 61111150666547. The reversal of 61111150666512 is 21566605111116.

It is a super-2 number, since 2×61111150666512² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14804055753 + ... + 14804059880.

Almost surely, 2^{61111150666512} is an apocalyptic number.

It is an amenable number.

61111150666512 is an abundant number, since it is smaller than the sum of its proper divisors (100430728232592).

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

61111150666512 is a wasteful number, since it uses less digits than its factorization.

61111150666512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29608115687 (or 29608115681 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 42.

Adding to 61111150666512 its reverse (21566605111116), we get a palindrome (82677755777628).

The spelling of 61111150666512 in words is "sixty-one trillion, one hundred eleven billion, one hundred fifty million, six hundred sixty-six thousand, five hundred twelve".