202640152461 has 8 divisors (see below), whose sum is σ = 270276615264. Its totient is φ = 135048562320.

The previous prime is 202640152457. The next prime is 202640152471. The reversal of 202640152461 is 164251046202.

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

It is not a de Polignac number, because 202640152461 - 2² = 202640152457 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202640152471) 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, 11207626 + ... + 11225691.

It is an arithmetic number, because the mean of its divisors is an integer number (33784576908).

Almost surely, 2^202640152461 is an apocalyptic number.

It is an amenable number.

202640152461 is a deficient number, since it is larger than the sum of its proper divisors (67636462803).

202640152461 is a wasteful number, since it uses less digits than its factorization.

202640152461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22436331.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 202640152461 its reverse (164251046202), we get a palindrome (366891198663).

The spelling of 202640152461 in words is "two hundred two billion, six hundred forty million, one hundred fifty-two thousand, four hundred sixty-one".