155111264 has 216 divisors, whose sum is σ = 428937768. Its totient is φ = 54405120.

The previous prime is 155111189. The next prime is 155111267. The reversal of 155111264 is 462111551.

155111264 = T₁₉₇ + T₁₉₈ + ... + T₉₇₈.

Its product of digits (1200) is a multiple of the sum of its prime divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155111267) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6743957 + ... + 6743979.

It is an arithmetic number, because the mean of its divisors is an integer number (1985823).

Almost surely, 2^155111264 is an apocalyptic number.

155111264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155111264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214468884).

155111264 is an abundant number, since it is smaller than the sum of its proper divisors (273826504).

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

155111264 is a wasteful number, since it uses less digits than its factorization.

155111264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 60 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 155111264 is about 12454.3672661440. The cubic root of 155111264 is about 537.2970370528.

The spelling of 155111264 in words is "one hundred fifty-five million, one hundred eleven thousand, two hundred sixty-four".