40122566562 has 64 divisors (see below), whose sum is σ = 90041616000. Its totient is φ = 11833855488.

The previous prime is 40122566489. The next prime is 40122566599. The reversal of 40122566562 is 26566522104.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 40122566562.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250614 + ... + 378222.

It is an arithmetic number, because the mean of its divisors is an integer number (1406900250).

Almost surely, 2^40122566562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40122566562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45020808000).

40122566562 is an abundant number, since it is smaller than the sum of its proper divisors (49919049438).

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

40122566562 is a wasteful number, since it uses less digits than its factorization.

40122566562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127795.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 40122566562 in words is "forty billion, one hundred twenty-two million, five hundred sixty-six thousand, five hundred sixty-two".