140015505551 has 2 divisors, whose sum is σ = 140015505552. Its totient is φ = 140015505550.

The previous prime is 140015505547. The next prime is 140015505557. The reversal of 140015505551 is 155505510041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140015505551 - 2² = 140015505547 is a prime.

It is a super-2 number, since 2×140015505551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140015505557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70007752775 + 70007752776.

It is an arithmetic number, because the mean of its divisors is an integer number (70007752776).

Almost surely, 2^140015505551 is an apocalyptic number.

140015505551 is a deficient number, since it is larger than the sum of its proper divisors (1).

140015505551 is an equidigital number, since it uses as much as digits as its factorization.

140015505551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12500, while the sum is 32.

The spelling of 140015505551 in words is "one hundred forty billion, fifteen million, five hundred five thousand, five hundred fifty-one".