3516220398497 has 4 divisors (see below), whose sum is σ = 3516574758960. Its totient is φ = 3515866038036.

The previous prime is 3516220398473. The next prime is 3516220398571. The reversal of 3516220398497 is 7948930226153.

It is a happy number.

3516220398497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3516220398497 - 2⁸ = 3516220398241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3516220398797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177165347 + ... + 177185192.

It is an arithmetic number, because the mean of its divisors is an integer number (879143689740).

It is a 1-persistent number, because it is pandigital, but 2⋅3516220398497 = 7032440796994 is not.

Almost surely, 2^{3516220398497} is an apocalyptic number.

It is an amenable number.

3516220398497 is a deficient number, since it is larger than the sum of its proper divisors (354360463).

3516220398497 is an equidigital number, since it uses as much as digits as its factorization.

3516220398497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354360462.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 3516220398497 in words is "three trillion, five hundred sixteen billion, two hundred twenty million, three hundred ninety-eight thousand, four hundred ninety-seven".