13021346546 has 16 divisors (see below), whose sum is σ = 21949026624. Its totient is φ = 5748554064.

The previous prime is 13021346543. The next prime is 13021346561. The reversal of 13021346546 is 64564312031.

It is a super-2 number, since 2×13021346546² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13021346543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10886816 + ... + 10888011.

It is an arithmetic number, because the mean of its divisors is an integer number (1371814164).

Almost surely, 2^13021346546 is an apocalyptic number.

13021346546 is a deficient number, since it is larger than the sum of its proper divisors (8927680078).

13021346546 is a wasteful number, since it uses less digits than its factorization.

13021346546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21774865.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 13021346546 its reverse (64564312031), we get a palindrome (77585658577).

The spelling of 13021346546 in words is "thirteen billion, twenty-one million, three hundred forty-six thousand, five hundred forty-six".