2601161026 has 4 divisors (see below), whose sum is σ = 3901741542. Its totient is φ = 1300580512.

The previous prime is 2601161023. The next prime is 2601161029. The reversal of 2601161026 is 6201611062.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2601161023) and next prime (2601161029).

It can be written as a sum of positive squares in only one way, i.e., 1432546801 + 1168614225 = 37849^2 + 34185^2 .

It is not an unprimeable number, because it can be changed into a prime (2601161023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650290255 + ... + 650290258.

Almost surely, 2^2601161026 is an apocalyptic number.

2601161026 is a deficient number, since it is larger than the sum of its proper divisors (1300580516).

2601161026 is a wasteful number, since it uses less digits than its factorization.

2601161026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300580515.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2601161026 is about 51001.5786618414. The cubic root of 2601161026 is about 1375.2735149111.

Adding to 2601161026 its reverse (6201611062), we get a palindrome (8802772088).

The spelling of 2601161026 in words is "two billion, six hundred one million, one hundred sixty-one thousand, twenty-six".