15540006742152 has 64 divisors (see below), whose sum is σ = 41144672027520. Its totient is φ = 4874186892288.

The previous prime is 15540006742121. The next prime is 15540006742159. The reversal of 15540006742152 is 25124760004551.

It is a super-2 number, since 2×15540006742152² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15540006742159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2537188 + ... + 6125139.

It is an arithmetic number, because the mean of its divisors is an integer number (642885500430).

Almost surely, 2^{15540006742152} is an apocalyptic number.

15540006742152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15540006742152 is an abundant number, since it is smaller than the sum of its proper divisors (25604665285368).

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

15540006742152 is a wasteful number, since it uses less digits than its factorization.

15540006742152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8666750 (or 8666746 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 15540006742152 in words is "fifteen trillion, five hundred forty billion, six million, seven hundred forty-two thousand, one hundred fifty-two".