140215405563551 has 2 divisors, whose sum is σ = 140215405563552. Its totient is φ = 140215405563550.

The previous prime is 140215405563503. The next prime is 140215405563577. The reversal of 140215405563551 is 155365504512041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140215405563551 - 2⁶ = 140215405563487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140215405563496 and 140215405563505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140215405863551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70107702781775 + 70107702781776.

It is an arithmetic number, because the mean of its divisors is an integer number (70107702781776).

Almost surely, 2^{140215405563551} is an apocalyptic number.

140215405563551 is a deficient number, since it is larger than the sum of its proper divisors (1).

140215405563551 is an equidigital number, since it uses as much as digits as its factorization.

140215405563551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 140215405563551 in words is "one hundred forty trillion, two hundred fifteen billion, four hundred five million, five hundred sixty-three thousand, five hundred fifty-one".