1450642161091 has 4 divisors (see below), whose sum is σ = 1456421612184. Its totient is φ = 1444862710000.

The previous prime is 1450642161077. The next prime is 1450642161103. The reversal of 1450642161091 is 1901612460541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1450642161091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1450642161691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889725170 + ... + 2889725671.

It is an arithmetic number, because the mean of its divisors is an integer number (364105403046).

Almost surely, 2^{1450642161091} is an apocalyptic number.

1450642161091 is a deficient number, since it is larger than the sum of its proper divisors (5779451093).

1450642161091 is an equidigital number, since it uses as much as digits as its factorization.

1450642161091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5779451092.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 1450642161091 in words is "one trillion, four hundred fifty billion, six hundred forty-two million, one hundred sixty-one thousand, ninety-one".