398770291166 has 16 divisors (see below), whose sum is σ = 644179302144. Its totient is φ = 184044424224.

The previous prime is 398770291163. The next prime is 398770291219. The reversal of 398770291166 is 661192077893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398770291163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786556 + ... + 1997328.

It is an arithmetic number, because the mean of its divisors is an integer number (40261206384).

Almost surely, 2^398770291166 is an apocalyptic number.

398770291166 is a deficient number, since it is larger than the sum of its proper divisors (245409010978).

398770291166 is a wasteful number, since it uses less digits than its factorization.

398770291166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283555.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 398770291166 in words is "three hundred ninety-eight billion, seven hundred seventy million, two hundred ninety-one thousand, one hundred sixty-six".