2231521640399 has 16 divisors (see below), whose sum is σ = 2380188055968. Its totient is φ = 2084790592512.

The previous prime is 2231521640377. The next prime is 2231521640441. The reversal of 2231521640399 is 9930461251322.

It is a de Polignac number, because none of the positive numbers 2^k-2231521640399 is a prime.

It is a super-3 number, since 3×2231521640399³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231520640399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70662377 + ... + 70693949.

It is an arithmetic number, because the mean of its divisors is an integer number (148761753498).

Almost surely, 2^{2231521640399} is an apocalyptic number.

2231521640399 is a deficient number, since it is larger than the sum of its proper divisors (148666415569).

2231521640399 is a wasteful number, since it uses less digits than its factorization.

2231521640399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62074.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 2231521640399 in words is "two trillion, two hundred thirty-one billion, five hundred twenty-one million, six hundred forty thousand, three hundred ninety-nine".