40551601244 has 24 divisors (see below), whose sum is σ = 88476221568. Its totient is φ = 15799325040.

The previous prime is 40551601229. The next prime is 40551601249. The reversal of 40551601244 is 44210615504.

It is a self number, because there is not a number n which added to its sum of digits gives 40551601244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40551601249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65830214 + ... + 65830829.

It is an arithmetic number, because the mean of its divisors is an integer number (3686509232).

Almost surely, 2^40551601244 is an apocalyptic number.

40551601244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40551601244 is an abundant number, since it is smaller than the sum of its proper divisors (47924620324).

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

40551601244 is a wasteful number, since it uses less digits than its factorization.

40551601244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131661065 (or 131661063 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 40551601244 in words is "forty billion, five hundred fifty-one million, six hundred one thousand, two hundred forty-four".