40061223156 has 24 divisors (see below), whose sum is σ = 93614280480. Its totient is φ = 13334013472.

The previous prime is 40061223149. The next prime is 40061223193. The reversal of 40061223156 is 65132216004.

40061223156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2457486 + ... + 2473733.

It is an arithmetic number, because the mean of its divisors is an integer number (3900595020).

Almost surely, 2^40061223156 is an apocalyptic number.

It is an amenable number.

40061223156 is an abundant number, since it is smaller than the sum of its proper divisors (53553057324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40061223156 is a wasteful number, since it uses less digits than its factorization.

40061223156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931903 (or 4931901 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 40061223156 in words is "forty billion, sixty-one million, two hundred twenty-three thousand, one hundred fifty-six".