2661435026 has 4 divisors (see below), whose sum is σ = 3992152542. Its totient is φ = 1330717512.

The previous prime is 2661435011. The next prime is 2661435031. The reversal of 2661435026 is 6205341662.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1806165001 + 855270025 = 42499^2 + 29245^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665358755 + ... + 665358758.

Almost surely, 2^2661435026 is an apocalyptic number.

2661435026 is a deficient number, since it is larger than the sum of its proper divisors (1330717516).

2661435026 is a wasteful number, since it uses less digits than its factorization.

2661435026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330717515.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2661435026 is about 51589.0979374519. The cubic root of 2661435026 is about 1385.8151007522.

Adding to 2661435026 its reverse (6205341662), we get a palindrome (8866776688).

The spelling of 2661435026 in words is "two billion, six hundred sixty-one million, four hundred thirty-five thousand, twenty-six".