201150178491 has 8 divisors (see below), whose sum is σ = 268287074640. Its totient is φ = 134056700672.

The previous prime is 201150178469. The next prime is 201150178499. The reversal of 201150178491 is 194871051102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201150178491 - 2¹⁰ = 201150177467 is a prime.

It is a super-2 number, since 2×201150178491² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201150178499) 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, 10843770 + ... + 10862303.

It is an arithmetic number, because the mean of its divisors is an integer number (33535884330).

Almost surely, 2^201150178491 is an apocalyptic number.

201150178491 is a deficient number, since it is larger than the sum of its proper divisors (67136896149).

201150178491 is a wasteful number, since it uses less digits than its factorization.

201150178491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21709165.

The product of its (nonzero) digits is 20160, while the sum is 39.

The spelling of 201150178491 in words is "two hundred one billion, one hundred fifty million, one hundred seventy-eight thousand, four hundred ninety-one".