2190696551 has 8 divisors (see below), whose sum is σ = 2352232224. Its totient is φ = 2032791040.

The previous prime is 2190696509. The next prime is 2190696587. The reversal of 2190696551 is 1556960912.

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 2190696551 - 2¹⁰ = 2190695527 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 (2190666551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906290 + ... + 908703.

It is an arithmetic number, because the mean of its divisors is an integer number (294029028).

Almost surely, 2^2190696551 is an apocalyptic number.

2190696551 is a deficient number, since it is larger than the sum of its proper divisors (161535673).

2190696551 is a wasteful number, since it uses less digits than its factorization.

2190696551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815081.

The product of its (nonzero) digits is 145800, while the sum is 44.

The square root of 2190696551 is about 46804.8774274648. The cubic root of 2190696551 is about 1298.7555252326.

The spelling of 2190696551 in words is "two billion, one hundred ninety million, six hundred ninety-six thousand, five hundred fifty-one".