400061166 has 8 divisors (see below), whose sum is σ = 800122344. Its totient is φ = 133353720.

The previous prime is 400061159. The next prime is 400061171. The reversal of 400061166 is 661160004.

It is a sphenic number, since it is the product of 3 distinct primes.

400061166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33338425 + ... + 33338436.

It is an arithmetic number, because the mean of its divisors is an integer number (100015293).

Almost surely, 2^400061166 is an apocalyptic number.

400061166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

400061166 is a wasteful number, since it uses less digits than its factorization.

400061166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66676866.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 400061166 is about 20001.5290915470. The cubic root of 400061166 is about 736.8438540590.

The spelling of 400061166 in words is "four hundred million, sixty-one thousand, one hundred sixty-six".