40021670111 has 4 divisors (see below), whose sum is σ = 40022086272. Its totient is φ = 40021253952.

The previous prime is 40021670063. The next prime is 40021670149. The reversal of 40021670111 is 11107612004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40021670111 - 2⁶ = 40021670047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021600111) 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, 18191 + ... + 283503.

It is an arithmetic number, because the mean of its divisors is an integer number (10005521568).

Almost surely, 2^40021670111 is an apocalyptic number.

40021670111 is a deficient number, since it is larger than the sum of its proper divisors (416161).

40021670111 is a wasteful number, since it uses less digits than its factorization.

40021670111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416160.

The product of its (nonzero) digits is 336, while the sum is 23.

The spelling of 40021670111 in words is "forty billion, twenty-one million, six hundred seventy thousand, one hundred eleven".