2251404362516 has 6 divisors (see below), whose sum is σ = 3939957634410. Its totient is φ = 1125702181256.

The previous prime is 2251404362357. The next prime is 2251404362561. The reversal of 2251404362516 is 6152634041522.

It can be written as a sum of positive squares in only one way, i.e., 1434557152900 + 816847209616 = 1197730^2 + 903796^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281425545311 + ... + 281425545318.

It is an arithmetic number, because the mean of its divisors is an integer number (656659605735).

Almost surely, 2^{2251404362516} is an apocalyptic number.

It is an amenable number.

2251404362516 is a deficient number, since it is larger than the sum of its proper divisors (1688553271894).

2251404362516 is a wasteful number, since it uses less digits than its factorization.

2251404362516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562851090633 (or 562851090631 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 2251404362516 in words is "two trillion, two hundred fifty-one billion, four hundred four million, three hundred sixty-two thousand, five hundred sixteen".