2213552511551 has 4 divisors (see below), whose sum is σ = 2249840257704. Its totient is φ = 2177264765400.

The previous prime is 2213552511487. The next prime is 2213552511553. The reversal of 2213552511551 is 1551152553122.

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 2213552511551 - 2⁶ = 2213552511487 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 (2213552511553) 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, 18143872985 + ... + 18143873106.

It is an arithmetic number, because the mean of its divisors is an integer number (562460064426).

Almost surely, 2^{2213552511551} is an apocalyptic number.

2213552511551 is a deficient number, since it is larger than the sum of its proper divisors (36287746153).

2213552511551 is an equidigital number, since it uses as much as digits as its factorization.

2213552511551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36287746152.

The product of its digits is 75000, while the sum is 38.

The spelling of 2213552511551 in words is "two trillion, two hundred thirteen billion, five hundred fifty-two million, five hundred eleven thousand, five hundred fifty-one".