20286161630 has 32 divisors (see below), whose sum is σ = 42749380800. Its totient is φ = 6785614080.

The previous prime is 20286161627. The next prime is 20286161657. The reversal of 20286161630 is 3616168202.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3531305 + ... + 3537044.

It is an arithmetic number, because the mean of its divisors is an integer number (1335918150).

Almost surely, 2^20286161630 is an apocalyptic number.

20286161630 is an abundant number, since it is smaller than the sum of its proper divisors (22463219170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20286161630 is a wasteful number, since it uses less digits than its factorization.

20286161630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068404.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 20286161630 in words is "twenty billion, two hundred eighty-six million, one hundred sixty-one thousand, six hundred thirty".