155050064 has 60 divisors (see below), whose sum is σ = 344532636. Its totient is φ = 67332096.

The previous prime is 155050057. The next prime is 155050067. The reversal of 155050064 is 460050551.

It can be written as a sum of positive squares in 6 ways, for example, as 1488400 + 153561664 = 1220^2 + 12392^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155050067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44282 + ... + 47654.

Almost surely, 2^155050064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155050064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172266318).

155050064 is an abundant number, since it is smaller than the sum of its proper divisors (189482572).

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

155050064 is a wasteful number, since it uses less digits than its factorization.

155050064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424 (or 3405 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 155050064 is about 12451.9100542848. The cubic root of 155050064 is about 537.2263632594.

The spelling of 155050064 in words is "one hundred fifty-five million, fifty thousand, sixty-four".