2153511146623 has 2 divisors, whose sum is σ = 2153511146624. Its totient is φ = 2153511146622.

The previous prime is 2153511146617. The next prime is 2153511146687. The reversal of 2153511146623 is 3266411153512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153511146623 is a prime.

It is a super-2 number, since 2×2153511146623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2153511146323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076755573311 + 1076755573312.

It is an arithmetic number, because the mean of its divisors is an integer number (1076755573312).

Almost surely, 2^{2153511146623} is an apocalyptic number.

2153511146623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153511146623 is an equidigital number, since it uses as much as digits as its factorization.

2153511146623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The spelling of 2153511146623 in words is "two trillion, one hundred fifty-three billion, five hundred eleven million, one hundred forty-six thousand, six hundred twenty-three".