40121621023166 has 16 divisors (see below), whose sum is σ = 60449719354800. Its totient is φ = 19971727564608.

The previous prime is 40121621023111. The next prime is 40121621023223. The reversal of 40121621023166 is 66132012612104.

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, 2947565 + ... + 9430343.

It is an arithmetic number, because the mean of its divisors is an integer number (3778107459675).

Almost surely, 2^{40121621023166} is an apocalyptic number.

40121621023166 is a deficient number, since it is larger than the sum of its proper divisors (20328098331634).

40121621023166 is a wasteful number, since it uses less digits than its factorization.

40121621023166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496523.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 40121621023166 in words is "forty trillion, one hundred twenty-one billion, six hundred twenty-one million, twenty-three thousand, one hundred sixty-six".