150421751440 has 80 divisors (see below), whose sum is σ = 370373437440. Its totient is φ = 56618588160.

The previous prime is 150421751419. The next prime is 150421751461. The reversal of 150421751440 is 44157124051.

It is an interprime number because it is at equal distance from previous prime (150421751419) and next prime (150421751461).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 150421751396 and 150421751405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13745491 + ... + 13756429.

It is an arithmetic number, because the mean of its divisors is an integer number (4629667968).

Almost surely, 2^150421751440 is an apocalyptic number.

150421751440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150421751440 is an abundant number, since it is smaller than the sum of its proper divisors (219951686000).

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

150421751440 is a wasteful number, since it uses less digits than its factorization.

150421751440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21080 (or 21074 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

Adding to 150421751440 its reverse (44157124051), we get a palindrome (194578875491).

The spelling of 150421751440 in words is "one hundred fifty billion, four hundred twenty-one million, seven hundred fifty-one thousand, four hundred forty".