2645015601 has 16 divisors (see below), whose sum is σ = 3746905344. Its totient is φ = 1653944064.

The previous prime is 2645015599. The next prime is 2645015603. The reversal of 2645015601 is 1065105462.

It is an interprime number because it is at equal distance from previous prime (2645015599) and next prime (2645015603).

It is not a de Polignac number, because 2645015601 - 2¹ = 2645015599 is a prime.

It is a super-2 number, since 2×2645015601² = 13992215059066782402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2645015603) 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, 73561 + ... + 103446.

It is an arithmetic number, because the mean of its divisors is an integer number (234181584).

Almost surely, 2^2645015601 is an apocalyptic number.

It is an amenable number.

2645015601 is a deficient number, since it is larger than the sum of its proper divisors (1101889743).

2645015601 is a wasteful number, since it uses less digits than its factorization.

2645015601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177320.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2645015601 is about 51429.7151557346. The cubic root of 2645015601 is about 1382.9593429533.

The spelling of 2645015601 in words is "two billion, six hundred forty-five million, fifteen thousand, six hundred one".