40051625566 has 4 divisors (see below), whose sum is σ = 60077438352. Its totient is φ = 20025812782.

The previous prime is 40051625563. The next prime is 40051625569. The reversal of 40051625566 is 66552615004.

40051625566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40051625563) and next prime (40051625569).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40051625561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012906390 + ... + 10012906393.

It is an arithmetic number, because the mean of its divisors is an integer number (15019359588).

Almost surely, 2^40051625566 is an apocalyptic number.

40051625566 is a deficient number, since it is larger than the sum of its proper divisors (20025812786).

40051625566 is a wasteful number, since it uses less digits than its factorization.

40051625566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025812785.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 40051625566 in words is "forty billion, fifty-one million, six hundred twenty-five thousand, five hundred sixty-six".