151121533520240 has 40 divisors (see below), whose sum is σ = 351358232052048. Its totient is φ = 60448498721280.

The previous prime is 151121533520213. The next prime is 151121533520297. The reversal of 151121533520240 is 42025335121151.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 151121533520240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49898759 + ... + 52840601.

Almost surely, 2^{151121533520240} is an apocalyptic number.

151121533520240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151121533520240 is an abundant number, since it is smaller than the sum of its proper divisors (200236698531808).

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

151121533520240 is a wasteful number, since it uses less digits than its factorization.

151121533520240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583977 (or 3583971 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 151121533520240 its reverse (42025335121151), we get a palindrome (193146868641391).

The spelling of 151121533520240 in words is "one hundred fifty-one trillion, one hundred twenty-one billion, five hundred thirty-three million, five hundred twenty thousand, two hundred forty".