201507150666 has 16 divisors (see below), whose sum is σ = 403393443264. Its totient is φ = 67105859904.

The previous prime is 201507150661. The next prime is 201507150679. The reversal of 201507150666 is 666051705102.

It is not an unprimeable number, because it can be changed into a prime (201507150661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15790671 + ... + 15803426.

It is an arithmetic number, because the mean of its divisors is an integer number (25212090204).

Almost surely, 2^201507150666 is an apocalyptic number.

201507150666 is an abundant number, since it is smaller than the sum of its proper divisors (201886292598).

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

201507150666 is a wasteful number, since it uses less digits than its factorization.

201507150666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31595165.

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 201507150666 its reverse (666051705102), we get a palindrome (867558855768).

The spelling of 201507150666 in words is "two hundred one billion, five hundred seven million, one hundred fifty thousand, six hundred sixty-six".