2061522345 has 16 divisors (see below), whose sum is σ = 3299650560. Its totient is φ = 1099073664.

The previous prime is 2061522343. The next prime is 2061522347. The reversal of 2061522345 is 5432251602.

It is an interprime number because it is at equal distance from previous prime (2061522343) and next prime (2061522347).

It is not a de Polignac number, because 2061522345 - 2¹ = 2061522343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061522343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19317 + ... + 67053.

It is an arithmetic number, because the mean of its divisors is an integer number (206228160).

Almost surely, 2^2061522345 is an apocalyptic number.

It is an amenable number.

2061522345 is a deficient number, since it is larger than the sum of its proper divisors (1238128215).

2061522345 is a wasteful number, since it uses less digits than its factorization.

2061522345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50624.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2061522345 is about 45403.9904083331. The cubic root of 2061522345 is about 1272.7096845428.

Adding to 2061522345 its reverse (5432251602), we get a palindrome (7493773947).

The spelling of 2061522345 in words is "two billion, sixty-one million, five hundred twenty-two thousand, three hundred forty-five".