155564046 has 48 divisors (see below), whose sum is σ = 370234800. Its totient is φ = 46815360.

The previous prime is 155564029. The next prime is 155564047. The reversal of 155564046 is 640465551.

155564046 is a `hidden beast` number, since 1 + 5 + 5 + 5 + 640 + 4 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155564046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155564047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26866 + ... + 32138.

It is an arithmetic number, because the mean of its divisors is an integer number (7713225).

Almost surely, 2^155564046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155564046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185117400).

155564046 is an abundant number, since it is smaller than the sum of its proper divisors (214670754).

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

155564046 is a wasteful number, since it uses less digits than its factorization.

155564046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441 (or 5438 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 155564046 is about 12472.5316596111. The cubic root of 155564046 is about 537.8193333013.

The spelling of 155564046 in words is "one hundred fifty-five million, five hundred sixty-four thousand, forty-six".