210426345566051 has 16 divisors (see below), whose sum is σ = 213385834610400. Its totient is φ = 207468947669760.

The previous prime is 210426345566029. The next prime is 210426345566093. The reversal of 210426345566051 is 150665543624012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210426345566051 is a prime.

It is a super-3 number, since 3×210426345566051³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (210426345569051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3141924401 + ... + 3141991373.

It is an arithmetic number, because the mean of its divisors is an integer number (13336614663150).

Almost surely, 2^{210426345566051} is an apocalyptic number.

210426345566051 is a deficient number, since it is larger than the sum of its proper divisors (2959489044349).

210426345566051 is a wasteful number, since it uses less digits than its factorization.

210426345566051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81926.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 210426345566051 in words is "two hundred ten trillion, four hundred twenty-six billion, three hundred forty-five million, five hundred sixty-six thousand, fifty-one".