2661433406 has 8 divisors (see below), whose sum is σ = 3998265624. Its totient is φ = 1328678200.

The previous prime is 2661433399. The next prime is 2661433427. The reversal of 2661433406 is 6043341662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017620 + ... + 1020231.

It is an arithmetic number, because the mean of its divisors is an integer number (499783203).

Almost surely, 2^2661433406 is an apocalyptic number.

2661433406 is a deficient number, since it is larger than the sum of its proper divisors (1336832218).

2661433406 is a wasteful number, since it uses less digits than its factorization.

2661433406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038506.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 2661433406 is about 51589.0822364577. The cubic root of 2661433406 is about 1385.8148195730.

The spelling of 2661433406 in words is "two billion, six hundred sixty-one million, four hundred thirty-three thousand, four hundred six".