2541645164 has 12 divisors (see below), whose sum is σ = 4457922504. Its totient is φ = 1267953024.

The previous prime is 2541645133. The next prime is 2541645167. The reversal of 2541645164 is 4615461452.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2541645167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715397 + ... + 718940.

It is an arithmetic number, because the mean of its divisors is an integer number (371493542).

Almost surely, 2^2541645164 is an apocalyptic number.

It is an amenable number.

2541645164 is a deficient number, since it is larger than the sum of its proper divisors (1916277340).

2541645164 is a wasteful number, since it uses less digits than its factorization.

2541645164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434784 (or 1434782 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 2541645164 is about 50414.7316168598. The cubic root of 2541645164 is about 1364.7035031613.

The spelling of 2541645164 in words is "two billion, five hundred forty-one million, six hundred forty-five thousand, one hundred sixty-four".