11945965534 has 8 divisors (see below), whose sum is σ = 18536843160. Its totient is φ = 5767017816.

The previous prime is 11945965519. The next prime is 11945965541. The reversal of 11945965534 is 43556954911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102982404 + ... + 102982519.

It is an arithmetic number, because the mean of its divisors is an integer number (2317105395).

Almost surely, 2^11945965534 is an apocalyptic number.

11945965534 is a deficient number, since it is larger than the sum of its proper divisors (6590877626).

11945965534 is a wasteful number, since it uses less digits than its factorization.

11945965534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205964954.

The product of its digits is 2916000, while the sum is 52.

The spelling of 11945965534 in words is "eleven billion, nine hundred forty-five million, nine hundred sixty-five thousand, five hundred thirty-four".