105815295772 has 6 divisors (see below), whose sum is σ = 185176767608. Its totient is φ = 52907647884.

The previous prime is 105815295731. The next prime is 105815295779. The reversal of 105815295772 is 277592518501.

It is a super-2 number, since 2×105815295772² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105815295779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13226911968 + ... + 13226911975.

Almost surely, 2^105815295772 is an apocalyptic number.

It is an amenable number.

105815295772 is a deficient number, since it is larger than the sum of its proper divisors (79361471836).

105815295772 is a wasteful number, since it uses less digits than its factorization.

105815295772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26453823947 (or 26453823945 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 52.

The spelling of 105815295772 in words is "one hundred five billion, eight hundred fifteen million, two hundred ninety-five thousand, seven hundred seventy-two".