1401520325620 has 48 divisors (see below), whose sum is σ = 2975653900800. Its totient is φ = 554446480896.

The previous prime is 1401520325539. The next prime is 1401520325627. The reversal of 1401520325620 is 265230251041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401520325627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 376681 + ... + 1716079.

It is an arithmetic number, because the mean of its divisors is an integer number (61992789600).

Almost surely, 2^{1401520325620} is an apocalyptic number.

1401520325620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401520325620 is an abundant number, since it is smaller than the sum of its proper divisors (1574133575180).

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

1401520325620 is a wasteful number, since it uses less digits than its factorization.

1401520325620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339984 (or 1339982 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1401520325620 its reverse (265230251041), we get a palindrome (1666750576661).

The spelling of 1401520325620 in words is "one trillion, four hundred one billion, five hundred twenty million, three hundred twenty-five thousand, six hundred twenty".