2153146561663 has 8 divisors (see below), whose sum is σ = 2172421874448. Its totient is φ = 2133875124864.

The previous prime is 2153146561633. The next prime is 2153146561697. The reversal of 2153146561663 is 3661656413512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2153146561663 - 2¹³ = 2153146553471 is a prime.

It is a super-2 number, since 2×2153146561663² (a number of 25 digits) contains 22 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 (2153146561633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152781 + ... + 2080777.

It is an arithmetic number, because the mean of its divisors is an integer number (271552734306).

Almost surely, 2^{2153146561663} is an apocalyptic number.

2153146561663 is a deficient number, since it is larger than the sum of its proper divisors (19275312785).

2153146561663 is a wasteful number, since it uses less digits than its factorization.

2153146561663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937993.

The product of its digits is 2332800, while the sum is 49.

The spelling of 2153146561663 in words is "two trillion, one hundred fifty-three billion, one hundred forty-six million, five hundred sixty-one thousand, six hundred sixty-three".