2146211152064 has 56 divisors (see below), whose sum is σ = 4933975712928. Its totient is φ = 907204700160.

The previous prime is 2146211152061. The next prime is 2146211152069. The reversal of 2146211152064 is 4602511126412.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (2146211152061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32779967 + ... + 32845374.

Almost surely, 2^{2146211152064} is an apocalyptic number.

It is an amenable number.

2146211152064 is an abundant number, since it is smaller than the sum of its proper divisors (2787764560864).

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

2146211152064 is an equidigital number, since it uses as much as digits as its factorization.

2146211152064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65625433 (or 65625423 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 2146211152064 its reverse (4602511126412), we get a palindrome (6748722278476).

The spelling of 2146211152064 in words is "two trillion, one hundred forty-six billion, two hundred eleven million, one hundred fifty-two thousand, sixty-four".