151215120213440 has 28 divisors (see below), whose sum is σ = 360081005009016. Its totient is φ = 60486048085248.

The previous prime is 151215120213397. The next prime is 151215120213457. The reversal of 151215120213440 is 44312021512151.

It is a super-2 number, since 2×151215120213440² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 151215120213397 and 151215120213406.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 236273625014 + ... + 236273625653.

Almost surely, 2^{151215120213440} is an apocalyptic number.

151215120213440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151215120213440 is an abundant number, since it is smaller than the sum of its proper divisors (208865884795576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151215120213440 is an equidigital number, since it uses as much as digits as its factorization.

151215120213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472547250684 (or 472547250674 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 151215120213440 its reverse (44312021512151), we get a palindrome (195527141725591).

The spelling of 151215120213440 in words is "one hundred fifty-one trillion, two hundred fifteen billion, one hundred twenty million, two hundred thirteen thousand, four hundred forty".