142551664551 has 12 divisors (see below), whose sum is σ = 205918750128. Its totient is φ = 95029462944.

The previous prime is 142551664543. The next prime is 142551664621. The reversal of 142551664551 is 155466155241.

142551664551 is a `hidden beast` number, since 1 + 4 + 2 + 551 + 6 + 6 + 45 + 51 = 666.

It is not a de Polignac number, because 142551664551 - 2³ = 142551664543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142551664497 and 142551664506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142551664951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229350 + ... + 581123.

It is an arithmetic number, because the mean of its divisors is an integer number (17159895844).

Almost surely, 2^142551664551 is an apocalyptic number.

142551664551 is a deficient number, since it is larger than the sum of its proper divisors (63367085577).

142551664551 is a wasteful number, since it uses less digits than its factorization.

142551664551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830022 (or 830019 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 142551664551 in words is "one hundred forty-two billion, five hundred fifty-one million, six hundred sixty-four thousand, five hundred fifty-one".