151818144413 has 8 divisors (see below), whose sum is σ = 163682902488. Its totient is φ = 139980020544.

The previous prime is 151818144409. The next prime is 151818144419. The reversal of 151818144413 is 314441818151.

It can be written as a sum of positive squares in 4 ways, for example, as 45540840409 + 106277304004 = 213403^2 + 326002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151818144413 - 2² = 151818144409 is a prime.

It is a super-2 number, since 2×151818144413² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151818144419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6646706 + ... + 6669507.

It is an arithmetic number, because the mean of its divisors is an integer number (20460362811).

Almost surely, 2^151818144413 is an apocalyptic number.

151818144413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

151818144413 is a deficient number, since it is larger than the sum of its proper divisors (11864758075).

151818144413 is a wasteful number, since it uses less digits than its factorization.

151818144413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13317103.

The product of its digits is 61440, while the sum is 41.

The spelling of 151818144413 in words is "one hundred fifty-one billion, eight hundred eighteen million, one hundred forty-four thousand, four hundred thirteen".