2661434436 has 48 divisors (see below), whose sum is σ = 6283428480. Its totient is φ = 876691200.

The previous prime is 2661434423. The next prime is 2661434483. The reversal of 2661434436 is 6344341662.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2661434394 and 2661434403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746025 + ... + 749583.

It is an arithmetic number, because the mean of its divisors is an integer number (130904760).

Almost surely, 2^2661434436 is an apocalyptic number.

It is an amenable number.

2661434436 is an abundant number, since it is smaller than the sum of its proper divisors (3621994044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2661434436 is a wasteful number, since it uses less digits than its factorization.

2661434436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284 (or 4282 counting only the distinct ones).

The product of its digits is 248832, while the sum is 39.

The square root of 2661434436 is about 51589.0922191891. The cubic root of 2661434436 is about 1385.8149983474.

The spelling of 2661434436 in words is "two billion, six hundred sixty-one million, four hundred thirty-four thousand, four hundred thirty-six".