155430366 has 64 divisors (see below), whose sum is σ = 399264768. Its totient is φ = 39207168.

The previous prime is 155430361. The next prime is 155430383. The reversal of 155430366 is 663034551.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155430361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6370 + ... + 18746.

It is an arithmetic number, because the mean of its divisors is an integer number (6238512).

Almost surely, 2^155430366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155430366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199632384).

155430366 is an abundant number, since it is smaller than the sum of its proper divisors (243834402).

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

155430366 is a wasteful number, since it uses less digits than its factorization.

155430366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12425.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 155430366 is about 12467.1715316667. The cubic root of 155430366 is about 537.6652353717.

The spelling of 155430366 in words is "one hundred fifty-five million, four hundred thirty thousand, three hundred sixty-six".