2002661297 has 32 divisors (see below), whose sum is σ = 2563814400. Its totient is φ = 1521980928.

The previous prime is 2002661291. The next prime is 2002661299. The reversal of 2002661297 is 7921662002.

It is not a de Polignac number, because 2002661297 - 2¹² = 2002657201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002661291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262229 + ... + 269757.

It is an arithmetic number, because the mean of its divisors is an integer number (80119200).

Almost surely, 2^2002661297 is an apocalyptic number.

It is an amenable number.

2002661297 is a deficient number, since it is larger than the sum of its proper divisors (561153103).

2002661297 is a wasteful number, since it uses less digits than its factorization.

2002661297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2002661297 is about 44751.1038634803. The cubic root of 2002661297 is about 1260.4796395576.

The spelling of 2002661297 in words is "two billion, two million, six hundred sixty-one thousand, two hundred ninety-seven".