213246265621653 has 64 divisors (see below), whose sum is σ = 353975074295040. Its totient is φ = 125740064620800.

The previous prime is 213246265621633. The next prime is 213246265621723. The reversal of 213246265621653 is 356126562642312.

213246265621653 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 4 + 6 + 2 + 6 + 5 + 621 + 6 + 5 + 3 = 666.

It is not a de Polignac number, because 213246265621653 - 2⁶ = 213246265621589 is a prime.

It is a super-2 number, since 2×213246265621653² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213246265621653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213246265621633) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196789143 + ... + 197869803.

It is an arithmetic number, because the mean of its divisors is an integer number (5530860535860).

Almost surely, 2^{213246265621653} is an apocalyptic number.

It is an amenable number.

213246265621653 is a deficient number, since it is larger than the sum of its proper divisors (140728808673387).

213246265621653 is a wasteful number, since it uses less digits than its factorization.

213246265621653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098675 (or 1098669 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 213246265621653 in words is "two hundred thirteen trillion, two hundred forty-six billion, two hundred sixty-five million, six hundred twenty-one thousand, six hundred fifty-three".