11669435091951 has 16 divisors (see below), whose sum is σ = 19149842202624. Its totient is φ = 6155306421984.

The previous prime is 11669435091943. The next prime is 11669435091997. The reversal of 11669435091951 is 15919053496611.

It is not a de Polignac number, because 11669435091951 - 2³ = 11669435091943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11669435091451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21372591471 + ... + 21372592016.

It is an arithmetic number, because the mean of its divisors is an integer number (1196865137664).

Almost surely, 2^{11669435091951} is an apocalyptic number.

11669435091951 is a deficient number, since it is larger than the sum of its proper divisors (7480407110673).

11669435091951 is a wasteful number, since it uses less digits than its factorization.

11669435091951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42745183510.

The product of its (nonzero) digits is 7873200, while the sum is 60.

The spelling of 11669435091951 in words is "eleven trillion, six hundred sixty-nine billion, four hundred thirty-five million, ninety-one thousand, nine hundred fifty-one".