11662121654 has 8 divisors (see below), whose sum is σ = 18096395760. Its totient is φ = 5629989736.

The previous prime is 11662121623. The next prime is 11662121671. The reversal of 11662121654 is 45612126611.

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, 100535474 + ... + 100535589.

It is an arithmetic number, because the mean of its divisors is an integer number (2262049470).

Almost surely, 2^11662121654 is an apocalyptic number.

11662121654 is a deficient number, since it is larger than the sum of its proper divisors (6434274106).

11662121654 is a wasteful number, since it uses less digits than its factorization.

11662121654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201071094.

The product of its digits is 17280, while the sum is 35.

The spelling of 11662121654 in words is "eleven billion, six hundred sixty-two million, one hundred twenty-one thousand, six hundred fifty-four".