1416640136621 has 2 divisors, whose sum is σ = 1416640136622. Its totient is φ = 1416640136620.

The previous prime is 1416640136567. The next prime is 1416640136633. The reversal of 1416640136621 is 1266310466141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 823029984100 + 593610152521 = 907210^2 + 770461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1416640136621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1416640126621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 708320068310 + 708320068311.

It is an arithmetic number, because the mean of its divisors is an integer number (708320068311).

Almost surely, 2^{1416640136621} is an apocalyptic number.

It is an amenable number.

1416640136621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1416640136621 is an equidigital number, since it uses as much as digits as its factorization.

1416640136621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 1416640136621 in words is "one trillion, four hundred sixteen billion, six hundred forty million, one hundred thirty-six thousand, six hundred twenty-one".