42402166562051 has 2 divisors, whose sum is σ = 42402166562052. Its totient is φ = 42402166562050.

The previous prime is 42402166562039. The next prime is 42402166562053. The reversal of 42402166562051 is 15026566120424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42402166562051 - 2¹⁴ = 42402166545667 is a prime.

Together with 42402166562053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42402166561993 and 42402166562011.

It is not a weakly prime, because it can be changed into another prime (42402166562053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201083281025 + 21201083281026.

It is an arithmetic number, because the mean of its divisors is an integer number (21201083281026).

Almost surely, 2^{42402166562051} is an apocalyptic number.

42402166562051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42402166562051 is an equidigital number, since it uses as much as digits as its factorization.

42402166562051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 42402166562051 in words is "forty-two trillion, four hundred two billion, one hundred sixty-six million, five hundred sixty-two thousand, fifty-one".