651053405400 has 192 divisors, whose sum is σ = 2134869073920. Its totient is φ = 163790668800.

The previous prime is 651053405399. The next prime is 651053405419. The reversal of 651053405400 is 4504350156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 684265 + ... + 1330535.

It is an arithmetic number, because the mean of its divisors is an integer number (11119109760).

Almost surely, 2^651053405400 is an apocalyptic number.

651053405400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651053405400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067434536960).

651053405400 is an abundant number, since it is smaller than the sum of its proper divisors (1483815668520).

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

651053405400 is a wasteful number, since it uses less digits than its factorization.

651053405400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646386 (or 646377 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 651053405400 its reverse (4504350156), we get a palindrome (655557755556).

The spelling of 651053405400 in words is "six hundred fifty-one billion, fifty-three million, four hundred five thousand, four hundred".