142661311512 has 32 divisors (see below), whose sum is σ = 357979143600. Its totient is φ = 47376988544.

The previous prime is 142661311487. The next prime is 142661311523. The reversal of 142661311512 is 215113166241.

It is a super-2 number, since 2×142661311512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11042283 + ... + 11055194.

Almost surely, 2^142661311512 is an apocalyptic number.

142661311512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142661311512 is an abundant number, since it is smaller than the sum of its proper divisors (215317832088).

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

142661311512 is a wasteful number, since it uses less digits than its factorization.

142661311512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22097755 (or 22097751 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

Adding to 142661311512 its reverse (215113166241), we get a palindrome (357774477753).

The spelling of 142661311512 in words is "one hundred forty-two billion, six hundred sixty-one million, three hundred eleven thousand, five hundred twelve".