142721796555 has 64 divisors (see below), whose sum is σ = 273441168000. Its totient is φ = 70212635136.

The previous prime is 142721796517. The next prime is 142721796577. The reversal of 142721796555 is 555697127241.

142721796555 is a `hidden beast` number, since 1 + 4 + 2 + 72 + 17 + 9 + 6 + 555 = 666.

142721796555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142721796555 - 2⁸ = 142721796299 is a prime.

It is a super-2 number, since 2×142721796555² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2479441 + ... + 2536349.

It is an arithmetic number, because the mean of its divisors is an integer number (4272518250).

Almost surely, 2^142721796555 is an apocalyptic number.

142721796555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142721796555 is a deficient number, since it is larger than the sum of its proper divisors (130719371445).

142721796555 is a wasteful number, since it uses less digits than its factorization.

142721796555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58365 (or 58359 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 142721796555 in words is "one hundred forty-two billion, seven hundred twenty-one million, seven hundred ninety-six thousand, five hundred fifty-five".