5521121516 has 6 divisors (see below), whose sum is σ = 9661962660. Its totient is φ = 2760560756.

The previous prime is 5521121513. The next prime is 5521121581. The reversal of 5521121516 is 6151211255.

It is not an unprimeable number, because it can be changed into a prime (5521121513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690140186 + ... + 690140193.

It is an arithmetic number, because the mean of its divisors is an integer number (1610327110).

Almost surely, 2^5521121516 is an apocalyptic number.

It is an amenable number.

5521121516 is a deficient number, since it is larger than the sum of its proper divisors (4140841144).

5521121516 is a wasteful number, since it uses less digits than its factorization.

5521121516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380280383 (or 1380280381 counting only the distinct ones).

The product of its digits is 3000, while the sum is 29.

The square root of 5521121516 is about 74304.2496496667. The cubic root of 5521121516 is about 1767.4308664585.

The spelling of 5521121516 in words is "five billion, five hundred twenty-one million, one hundred twenty-one thousand, five hundred sixteen".