2166692572 has 12 divisors (see below), whose sum is σ = 4136413176. Its totient is φ = 984860240.

The previous prime is 2166692543. The next prime is 2166692581. The reversal of 2166692572 is 2752966612.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24621463 + ... + 24621550.

It is an arithmetic number, because the mean of its divisors is an integer number (344701098).

Almost surely, 2^2166692572 is an apocalyptic number.

2166692572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2166692572 is a deficient number, since it is larger than the sum of its proper divisors (1969720604).

2166692572 is a wasteful number, since it uses less digits than its factorization.

2166692572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49243028 (or 49243026 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 2166692572 is about 46547.7450796491. The cubic root of 2166692572 is about 1293.9945032004.

The spelling of 2166692572 in words is "two billion, one hundred sixty-six million, six hundred ninety-two thousand, five hundred seventy-two".