2661004435 has 32 divisors (see below), whose sum is σ = 3513922560. Its totient is φ = 1925497728.

The previous prime is 2661004433. The next prime is 2661004459. The reversal of 2661004435 is 5344001662.

It is a cyclic number.

It is not a de Polignac number, because 2661004435 - 2¹ = 2661004433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2661004397 and 2661004406.

It is not an unprimeable number, because it can be changed into a prime (2661004433) 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, 1937409 + ... + 1938781.

It is an arithmetic number, because the mean of its divisors is an integer number (109810080).

Almost surely, 2^2661004435 is an apocalyptic number.

2661004435 is a deficient number, since it is larger than the sum of its proper divisors (852918125).

2661004435 is a wasteful number, since it uses less digits than its factorization.

2661004435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2661004435 is about 51584.9244934991. The cubic root of 2661004435 is about 1385.7403601595.

The spelling of 2661004435 in words is "two billion, six hundred sixty-one million, four thousand, four hundred thirty-five".