2145550541464 has 96 divisors (see below), whose sum is σ = 4595559721200. Its totient is φ = 930985735680.

The previous prime is 2145550541419. The next prime is 2145550541489. The reversal of 2145550541464 is 4641450555412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6217002 + ... + 6553030.

Almost surely, 2^{2145550541464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145550541464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2297779860600).

2145550541464 is an abundant number, since it is smaller than the sum of its proper divisors (2450009179736).

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

2145550541464 is a wasteful number, since it uses less digits than its factorization.

2145550541464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336173 (or 336132 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 46.

The spelling of 2145550541464 in words is "two trillion, one hundred forty-five billion, five hundred fifty million, five hundred forty-one thousand, four hundred sixty-four".