2146664615601 has 48 divisors (see below), whose sum is σ = 3333240433152. Its totient is φ = 1223706570240.

The previous prime is 2146664615597. The next prime is 2146664615609. The reversal of 2146664615601 is 1065164666412.

It is not a de Polignac number, because 2146664615601 - 2² = 2146664615597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2146664615609) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9746176 + ... + 9963998.

It is an arithmetic number, because the mean of its divisors is an integer number (69442509024).

Almost surely, 2^{2146664615601} is an apocalyptic number.

It is an amenable number.

2146664615601 is a deficient number, since it is larger than the sum of its proper divisors (1186575817551).

2146664615601 is a wasteful number, since it uses less digits than its factorization.

2146664615601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219462 (or 219451 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 2146664615601 in words is "two trillion, one hundred forty-six billion, six hundred sixty-four million, six hundred fifteen thousand, six hundred one".