40161045210 has 256 divisors, whose sum is σ = 116154404352. Its totient is φ = 8757964800.

The previous prime is 40161045203. The next prime is 40161045227. The reversal of 40161045210 is 1254016104.

It is a happy number.

It is a super-2 number, since 2×40161045210² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39334500 + ... + 39335520.

It is an arithmetic number, because the mean of its divisors is an integer number (453728142).

Almost surely, 2^40161045210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40161045210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58077202176).

40161045210 is an abundant number, since it is smaller than the sum of its proper divisors (75993359142).

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

40161045210 is a wasteful number, since it uses less digits than its factorization.

40161045210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281.

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 40161045210 in words is "forty billion, one hundred sixty-one million, forty-five thousand, two hundred ten".