1340260153551 has 24 divisors (see below), whose sum is σ = 2147720440320. Its totient is φ = 798511438800.

The previous prime is 1340260153549. The next prime is 1340260153567. The reversal of 1340260153551 is 1553510620431.

1340260153551 is a `hidden beast` number, since 1 + 3 + 40 + 2 + 60 + 1 + 5 + 3 + 551 = 666.

It is not a de Polignac number, because 1340260153551 - 2¹ = 1340260153549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340260153451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114722815 + ... + 114734496.

It is an arithmetic number, because the mean of its divisors is an integer number (89488351680).

Almost surely, 2^{1340260153551} is an apocalyptic number.

1340260153551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1340260153551 is a deficient number, since it is larger than the sum of its proper divisors (807460286769).

1340260153551 is a wasteful number, since it uses less digits than its factorization.

1340260153551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229457387 (or 229457384 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 1340260153551 its reverse (1553510620431), we get a palindrome (2893770773982).

The spelling of 1340260153551 in words is "one trillion, three hundred forty billion, two hundred sixty million, one hundred fifty-three thousand, five hundred fifty-one".