142645653551 has 6 divisors (see below), whose sum is σ = 149117290560. Its totient is φ = 136443668108.

The previous prime is 142645653533. The next prime is 142645653571. The reversal of 142645653551 is 155356546241.

It is a happy number.

It is not a de Polignac number, because 142645653551 - 2¹⁸ = 142645391407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142645653496 and 142645653505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142645653571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134825231 + ... + 134826288.

It is an arithmetic number, because the mean of its divisors is an integer number (24852881760).

Almost surely, 2^142645653551 is an apocalyptic number.

142645653551 is a deficient number, since it is larger than the sum of its proper divisors (6471637009).

142645653551 is an equidigital number, since it uses as much as digits as its factorization.

142645653551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269651565 (or 269651542 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 47.

The spelling of 142645653551 in words is "one hundred forty-two billion, six hundred forty-five million, six hundred fifty-three thousand, five hundred fifty-one".