2153663771401 has 4 divisors (see below), whose sum is σ = 2153671304400. Its totient is φ = 2153656238404.

The previous prime is 2153663771387. The next prime is 2153663771411. The reversal of 2153663771401 is 1041773663512.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2153663771401 - 2⁹ = 2153663770889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153663771411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3320011 + ... + 3915328.

It is an arithmetic number, because the mean of its divisors is an integer number (538417826100).

Almost surely, 2^{2153663771401} is an apocalyptic number.

It is an amenable number.

2153663771401 is a deficient number, since it is larger than the sum of its proper divisors (7532999).

2153663771401 is an equidigital number, since it uses as much as digits as its factorization.

2153663771401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532998.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 2153663771401 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-three million, seven hundred seventy-one thousand, four hundred one".