2145464520464 has 20 divisors (see below), whose sum is σ = 4157500569600. Its totient is φ = 1072561147680.

The previous prime is 2145464520439. The next prime is 2145464520509. The reversal of 2145464520464 is 4640254645412.

It is a super-3 number, since 3×2145464520464³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10591064 + ... + 10791735.

It is an arithmetic number, because the mean of its divisors is an integer number (207875028480).

Almost surely, 2^{2145464520464} is an apocalyptic number.

It is an amenable number.

2145464520464 is a deficient number, since it is larger than the sum of its proper divisors (2012036049136).

2145464520464 is a wasteful number, since it uses less digits than its factorization.

2145464520464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21389078 (or 21389072 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 47.

The spelling of 2145464520464 in words is "two trillion, one hundred forty-five billion, four hundred sixty-four million, five hundred twenty thousand, four hundred sixty-four".