2145205501334 has 48 divisors (see below), whose sum is σ = 3936365199360. Its totient is φ = 858687473280.

The previous prime is 2145205501267. The next prime is 2145205501337. The reversal of 2145205501334 is 4331055025412.

It is a junction number, because it is equal to n+sod(n) for n = 2145205501294 and 2145205501303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145205501337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1493654 + ... + 2553705.

It is an arithmetic number, because the mean of its divisors is an integer number (82007608320).

Almost surely, 2^{2145205501334} is an apocalyptic number.

2145205501334 is a deficient number, since it is larger than the sum of its proper divisors (1791159698026).

2145205501334 is a wasteful number, since it uses less digits than its factorization.

2145205501334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047533 (or 4047516 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 2145205501334 in words is "two trillion, one hundred forty-five billion, two hundred five million, five hundred one thousand, three hundred thirty-four".