151420542640 has 20 divisors (see below), whose sum is σ = 352052761824. Its totient is φ = 60568217024.

The previous prime is 151420542613. The next prime is 151420542641. The reversal of 151420542640 is 46245024151.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 151420542596 and 151420542605.

It is not an unprimeable number, because it can be changed into a prime (151420542641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946378312 + ... + 946378471.

Almost surely, 2^151420542640 is an apocalyptic number.

151420542640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151420542640 is an abundant number, since it is smaller than the sum of its proper divisors (200632219184).

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

151420542640 is a wasteful number, since it uses less digits than its factorization.

151420542640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892756796 (or 1892756790 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 151420542640 its reverse (46245024151), we get a palindrome (197665566791).

The spelling of 151420542640 in words is "one hundred fifty-one billion, four hundred twenty million, five hundred forty-two thousand, six hundred forty".