151816818481 has 8 divisors (see below), whose sum is σ = 152060545728. Its totient is φ = 151573170000.

The previous prime is 151816818467. The next prime is 151816818521. The reversal of 151816818481 is 184818618151.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 151816818481 - 2¹¹ = 151816816433 is a prime.

It is a super-2 number, since 2×151816818481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151816815481) 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, 4744546 + ... + 4776436.

It is an arithmetic number, because the mean of its divisors is an integer number (19007568216).

Almost surely, 2^151816818481 is an apocalyptic number.

It is an amenable number.

151816818481 is a deficient number, since it is larger than the sum of its proper divisors (243727247).

151816818481 is an equidigital number, since it uses as much as digits as its factorization.

151816818481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39383.

The product of its digits is 491520, while the sum is 52.

The spelling of 151816818481 in words is "one hundred fifty-one billion, eight hundred sixteen million, eight hundred eighteen thousand, four hundred eighty-one".