66570150 has 48 divisors (see below), whose sum is σ = 167114304. Its totient is φ = 17534880.

The previous prime is 66570107. The next prime is 66570169. The reversal of 66570150 is 5107566.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9777 + ... + 15123.

It is an arithmetic number, because the mean of its divisors is an integer number (3481548).

Almost surely, 2^66570150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66570150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83557152).

66570150 is an abundant number, since it is smaller than the sum of its proper divisors (100544154).

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

66570150 is a wasteful number, since it uses less digits than its factorization.

66570150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445 (or 5440 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 66570150 is about 8159.0532539015. The cubic root of 66570150 is about 405.2843605771.

The spelling of 66570150 in words is "sixty-six million, five hundred seventy thousand, one hundred fifty".