155205064 has 16 divisors (see below), whose sum is σ = 332582400. Its totient is φ = 66516432.

The previous prime is 155205023. The next prime is 155205067. The reversal of 155205064 is 460502551.

It is a super-2 number, since 2×155205064² = 48177223782488192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (155205067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385704 + ... + 1385815.

It is an arithmetic number, because the mean of its divisors is an integer number (20786400).

Almost surely, 2^155205064 is an apocalyptic number.

155205064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155205064 is an abundant number, since it is smaller than the sum of its proper divisors (177377336).

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

155205064 is a wasteful number, since it uses less digits than its factorization.

155205064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771532 (or 2771528 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 155205064 is about 12458.1324443112. The cubic root of 155205064 is about 537.4053212721.

The spelling of 155205064 in words is "one hundred fifty-five million, two hundred five thousand, sixty-four".