105956121724 has 24 divisors (see below), whose sum is σ = 188950663440. Its totient is φ = 51970523904.

The previous prime is 105956121709. The next prime is 105956121757. The reversal of 105956121724 is 427121659501.

It is a super-2 number, since 2×105956121724² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1495812 + ... + 1565044.

It is an arithmetic number, because the mean of its divisors is an integer number (7872944310).

Almost surely, 2^105956121724 is an apocalyptic number.

It is an amenable number.

105956121724 is a deficient number, since it is larger than the sum of its proper divisors (82994541716).

105956121724 is a wasteful number, since it uses less digits than its factorization.

105956121724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76509 (or 76507 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 105956121724 in words is "one hundred five billion, nine hundred fifty-six million, one hundred twenty-one thousand, seven hundred twenty-four".