1537623420660 has 192 divisors, whose sum is σ = 4902981269760. Its totient is φ = 399820861440.

The previous prime is 1537623420629. The next prime is 1537623420719. The reversal of 1537623420660 is 660243267351.

1537623420660 is a `hidden beast` number, since 1 + 537 + 6 + 2 + 34 + 20 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44329084 + ... + 44363756.

It is an arithmetic number, because the mean of its divisors is an integer number (25536360780).

Almost surely, 2^{1537623420660} is an apocalyptic number.

1537623420660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1537623420660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451490634880).

1537623420660 is an abundant number, since it is smaller than the sum of its proper divisors (3365357849100).

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

1537623420660 is a wasteful number, since it uses less digits than its factorization.

1537623420660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36735 (or 36727 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 1537623420660 in words is "one trillion, five hundred thirty-seven billion, six hundred twenty-three million, four hundred twenty thousand, six hundred sixty".