20461342631151 has 16 divisors (see below), whose sum is σ = 27310719389184. Its totient is φ = 13626431224224.

The previous prime is 20461342631131. The next prime is 20461342631183. The reversal of 20461342631151 is 15113624316402.

It is not a de Polignac number, because 20461342631151 - 2⁹ = 20461342630639 is a prime.

It is a super-3 number, since 3×20461342631151³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20461342631131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155767366 + ... + 155898668.

It is an arithmetic number, because the mean of its divisors is an integer number (1706919961824).

Almost surely, 2^{20461342631151} is an apocalyptic number.

20461342631151 is a deficient number, since it is larger than the sum of its proper divisors (6849376758033).

20461342631151 is a wasteful number, since it uses less digits than its factorization.

20461342631151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185990.

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 20461342631151 its reverse (15113624316402), we get a palindrome (35574966947553).

The spelling of 20461342631151 in words is "twenty trillion, four hundred sixty-one billion, three hundred forty-two million, six hundred thirty-one thousand, one hundred fifty-one".