2145351603634 has 16 divisors (see below), whose sum is σ = 3233374842456. Its totient is φ = 1067565484800.

The previous prime is 2145351603607. The next prime is 2145351603653. The reversal of 2145351603634 is 4363061535412.

It can be written as a sum of positive squares in 4 ways, for example, as 2092058496025 + 53293107609 = 1446395^2 + 230853^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591577 + ... + 2154220.

Almost surely, 2^{2145351603634} is an apocalyptic number.

2145351603634 is a deficient number, since it is larger than the sum of its proper divisors (1088023238822).

2145351603634 is a wasteful number, since it uses less digits than its factorization.

2145351603634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747661.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 2145351603634 in words is "two trillion, one hundred forty-five billion, three hundred fifty-one million, six hundred three thousand, six hundred thirty-four".