16211637338 has 16 divisors (see below), whose sum is σ = 26745223680. Its totient is φ = 7323095856.

The previous prime is 16211637329. The next prime is 16211637341. The reversal of 16211637338 is 83373611261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16211637295 and 16211637304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6632018 + ... + 6634461.

It is an arithmetic number, because the mean of its divisors is an integer number (1671576480).

Almost surely, 2^16211637338 is an apocalyptic number.

16211637338 is a deficient number, since it is larger than the sum of its proper divisors (10533586342).

16211637338 is a wasteful number, since it uses less digits than its factorization.

16211637338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266541.

The product of its digits is 108864, while the sum is 41.

The spelling of 16211637338 in words is "sixteen billion, two hundred eleven million, six hundred thirty-seven thousand, three hundred thirty-eight".