11161215070552 has 8 divisors (see below), whose sum is σ = 20927278257300. Its totient is φ = 5580607535272.

The previous prime is 11161215070529. The next prime is 11161215070553. The reversal of 11161215070552 is 25507051216111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11161215070552² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161215070553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697575941902 + ... + 697575941917.

Almost surely, 2^{11161215070552} is an apocalyptic number.

It is an amenable number.

11161215070552 is a deficient number, since it is larger than the sum of its proper divisors (9766063186748).

11161215070552 is a wasteful number, since it uses less digits than its factorization.

11161215070552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395151883825 (or 1395151883821 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 37.

Adding to 11161215070552 its reverse (25507051216111), we get a palindrome (36668266286663).

The spelling of 11161215070552 in words is "eleven trillion, one hundred sixty-one billion, two hundred fifteen million, seventy thousand, five hundred fifty-two".