2190085551 has 24 divisors (see below), whose sum is σ = 3272256000. Its totient is φ = 1410037200.

The previous prime is 2190085531. The next prime is 2190085577. The reversal of 2190085551 is 1555800912.

It is a happy number.

2190085551 is a `hidden beast` number, since 21 + 9 + 0 + 0 + 85 + 551 = 666.

It is not a de Polignac number, because 2190085551 - 2⁵ = 2190085519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190085531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131356 + ... + 147086.

It is an arithmetic number, because the mean of its divisors is an integer number (136344000).

Almost surely, 2^2190085551 is an apocalyptic number.

2190085551 is a deficient number, since it is larger than the sum of its proper divisors (1082170449).

2190085551 is a wasteful number, since it uses less digits than its factorization.

2190085551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16267 (or 16264 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The square root of 2190085551 is about 46798.3498747552. The cubic root of 2190085551 is about 1298.6347701222.

The spelling of 2190085551 in words is "two billion, one hundred ninety million, eighty-five thousand, five hundred fifty-one".