211611144402 has 24 divisors (see below), whose sum is σ = 523989500736. Its totient is φ = 60460326936.

The previous prime is 211611144391. The next prime is 211611144413. The reversal of 211611144402 is 204441116112.

It is a happy number.

211611144402 is a `hidden beast` number, since 2 + 1 + 1 + 611 + 1 + 4 + 4 + 40 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (211611144391) and next prime (211611144413).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839726638 + ... + 839726889.

It is an arithmetic number, because the mean of its divisors is an integer number (21832895864).

Almost surely, 2^211611144402 is an apocalyptic number.

211611144402 is an abundant number, since it is smaller than the sum of its proper divisors (312378356334).

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

211611144402 is a wasteful number, since it uses less digits than its factorization.

211611144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679453542 (or 1679453539 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The spelling of 211611144402 in words is "two hundred eleven billion, six hundred eleven million, one hundred forty-four thousand, four hundred two".