15671545606420 has 144 divisors (see below), whose sum is σ = 37001675007360. Its totient is φ = 5529240691200.

The previous prime is 15671545606417. The next prime is 15671545606433. The reversal of 15671545606420 is 2460654517651.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 108051150 + ... + 108196090.

It is an arithmetic number, because the mean of its divisors is an integer number (256956076440).

Almost surely, 2^{15671545606420} is an apocalyptic number.

15671545606420 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 15671545606420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18500837503680).

15671545606420 is an abundant number, since it is smaller than the sum of its proper divisors (21330129400940).

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

15671545606420 is a wasteful number, since it uses less digits than its factorization.

15671545606420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145394 (or 145355 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 15671545606420 in words is "fifteen trillion, six hundred seventy-one billion, five hundred forty-five million, six hundred six thousand, four hundred twenty".