3729801566 has 4 divisors (see below), whose sum is σ = 5594702352. Its totient is φ = 1864900782.

The previous prime is 3729801521. The next prime is 3729801571. The reversal of 3729801566 is 6651089273.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3729801566² = 27822839443472104712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3729801566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932450390 + ... + 932450393.

It is an arithmetic number, because the mean of its divisors is an integer number (1398675588).

Almost surely, 2^3729801566 is an apocalyptic number.

3729801566 is a deficient number, since it is larger than the sum of its proper divisors (1864900786).

3729801566 is a wasteful number, since it uses less digits than its factorization.

3729801566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864900785.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 3729801566 is about 61072.1013720668. The cubic root of 3729801566 is about 1550.8218417931.

The spelling of 3729801566 in words is "three billion, seven hundred twenty-nine million, eight hundred one thousand, five hundred sixty-six".