15534520051412 has 6 divisors (see below), whose sum is σ = 27185410089978. Its totient is φ = 7767260025704.

The previous prime is 15534520051381. The next prime is 15534520051429. The reversal of 15534520051412 is 21415002543551.

It can be written as a sum of positive squares in only one way, i.e., 8096278396816 + 7438241654596 = 2845396^2 + 2727314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1941815006423 + ... + 1941815006430.

It is an arithmetic number, because the mean of its divisors is an integer number (4530901681663).

Almost surely, 2^{15534520051412} is an apocalyptic number.

It is an amenable number.

15534520051412 is a deficient number, since it is larger than the sum of its proper divisors (11650890038566).

15534520051412 is a wasteful number, since it uses less digits than its factorization.

15534520051412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883630012857 (or 3883630012855 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 15534520051412 its reverse (21415002543551), we get a palindrome (36949522594963).

The spelling of 15534520051412 in words is "fifteen trillion, five hundred thirty-four billion, five hundred twenty million, fifty-one thousand, four hundred twelve".