2321516603412 has 18 divisors (see below), whose sum is σ = 5868278080938. Its totient is φ = 773838867792.

The previous prime is 2321516603387. The next prime is 2321516603423. The reversal of 2321516603412 is 2143066151232.

2321516603412 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 5 + 1 + 6 + 603 + 41 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2171868323076 + 149648280336 = 1473726^2 + 386844^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 64486572317 = 2321516603412 / (2 + 3 + 2 + 1 + 5 + 1 + 6 + 6 + 0 + 3 + 4 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32243286123 + ... + 32243286194.

It is an arithmetic number, because the mean of its divisors is an integer number (326015448941).

Almost surely, 2^{2321516603412} is an apocalyptic number.

It is an amenable number.

2321516603412 is an abundant number, since it is smaller than the sum of its proper divisors (3546761477526).

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

2321516603412 is a wasteful number, since it uses less digits than its factorization.

2321516603412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64486572327 (or 64486572322 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 2321516603412 in words is "two trillion, three hundred twenty-one billion, five hundred sixteen million, six hundred three thousand, four hundred twelve".