212515563566046 has 32 divisors (see below), whose sum is σ = 459197616503808. Its totient is φ = 65179148847840.

The previous prime is 212515563566039. The next prime is 212515563566051. The reversal of 212515563566046 is 640665365515212.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 4380294886 + ... + 4380343401.

It is an arithmetic number, because the mean of its divisors is an integer number (14349925515744).

Almost surely, 2^{212515563566046} is an apocalyptic number.

212515563566046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

212515563566046 is an abundant number, since it is smaller than the sum of its proper divisors (246682052937762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212515563566046 is a wasteful number, since it uses less digits than its factorization.

212515563566046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8760638616.

The product of its (nonzero) digits is 38880000, while the sum is 57.

The spelling of 212515563566046 in words is "two hundred twelve trillion, five hundred fifteen billion, five hundred sixty-three million, five hundred sixty-six thousand, forty-six".