2142554651551 has 4 divisors (see below), whose sum is σ = 2142851452600. Its totient is φ = 2142257850504.

The previous prime is 2142554651533. The next prime is 2142554651557. The reversal of 2142554651551 is 1551564552412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142554651551 - 2⁷ = 2142554651423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142554651557) 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, 148389696 + ... + 148404133.

It is an arithmetic number, because the mean of its divisors is an integer number (535712863150).

Almost surely, 2^{2142554651551} is an apocalyptic number.

2142554651551 is a deficient number, since it is larger than the sum of its proper divisors (296801049).

2142554651551 is an equidigital number, since it uses as much as digits as its factorization.

2142554651551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296801048.

The product of its digits is 1200000, while the sum is 46.

The spelling of 2142554651551 in words is "two trillion, one hundred forty-two billion, five hundred fifty-four million, six hundred fifty-one thousand, five hundred fifty-one".