651413050440 has 128 divisors (see below), whose sum is σ = 2041075152000. Its totient is φ = 166150545408.

The previous prime is 651413050433. The next prime is 651413050441. The reversal of 651413050440 is 44050314156.

651413050440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (651413050441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981385 + ... + 1505304.

It is an arithmetic number, because the mean of its divisors is an integer number (15945899625).

Almost surely, 2^651413050440 is an apocalyptic number.

651413050440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651413050440 is an abundant number, since it is smaller than the sum of its proper divisors (1389662101560).

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

651413050440 is a wasteful number, since it uses less digits than its factorization.

651413050440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486799 (or 2486795 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 651413050440 its reverse (44050314156), we get a palindrome (695463364596).

The spelling of 651413050440 in words is "six hundred fifty-one billion, four hundred thirteen million, fifty thousand, four hundred forty".