400516651455131 has 2 divisors, whose sum is σ = 400516651455132. Its totient is φ = 400516651455130.

The previous prime is 400516651455079. The next prime is 400516651455157. The reversal of 400516651455131 is 131554156615004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400516651455131 - 2¹⁴ = 400516651438747 is a prime.

It is a super-2 number, since 2×400516651455131² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400516651455191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200258325727565 + 200258325727566.

It is an arithmetic number, because the mean of its divisors is an integer number (200258325727566).

Almost surely, 2^{400516651455131} is an apocalyptic number.

400516651455131 is a deficient number, since it is larger than the sum of its proper divisors (1).

400516651455131 is an equidigital number, since it uses as much as digits as its factorization.

400516651455131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 400516651455131 in words is "four hundred trillion, five hundred sixteen billion, six hundred fifty-one million, four hundred fifty-five thousand, one hundred thirty-one".