1616460722146 has 4 divisors (see below), whose sum is σ = 2424691083222. Its totient is φ = 808230361072.

The previous prime is 1616460722143. The next prime is 1616460722179. The reversal of 1616460722146 is 6412270646161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1568102513121 + 48358209025 = 1252239^2 + 219905^2 .

It is a super-2 number, since 2×1616460722146² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616460722096 and 1616460722105.

It is not an unprimeable number, because it can be changed into a prime (1616460722143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404115180535 + ... + 404115180538.

Almost surely, 2^{1616460722146} is an apocalyptic number.

1616460722146 is a deficient number, since it is larger than the sum of its proper divisors (808230361076).

1616460722146 is an equidigital number, since it uses as much as digits as its factorization.

1616460722146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808230361075.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 1616460722146 in words is "one trillion, six hundred sixteen billion, four hundred sixty million, seven hundred twenty-two thousand, one hundred forty-six".