1091650922041 has 9 divisors (see below), whose sum is σ = 1141202739621. Its totient is φ = 1044164852412.

The previous prime is 1091650922039. The next prime is 1091650922093. The reversal of 1091650922041 is 1402290561901.

The square root of 1091650922041 is 1044821.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1091650922041 - 2¹ = 1091650922039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1091650921985 and 1091650922003.

It is not an unprimeable number, because it can be changed into a prime (1091650925041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24008170 + ... + 24053596.

Almost surely, 2^{1091650922041} is an apocalyptic number.

1091650922041 is the 1044821-st square number.

1091650922041 is the 522411-st centered octagonal number.

It is an amenable number.

1091650922041 is a deficient number, since it is larger than the sum of its proper divisors (49551817580).

1091650922041 is an frugal number, since it uses more digits than its factorization.

1091650922041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90900 (or 45450 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 1091650922041 in words is "one trillion, ninety-one billion, six hundred fifty million, nine hundred twenty-two thousand, forty-one".