16201340402 has 8 divisors (see below), whose sum is σ = 26171396076. Its totient is φ = 7477541712.

The previous prime is 16201340399. The next prime is 16201340443. The reversal of 16201340402 is 20404310261.

It can be written as a sum of positive squares in 2 ways, for example, as 13087588801 + 3113751601 = 114401^2 + 55801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311564213 + ... + 311564264.

Almost surely, 2^16201340402 is an apocalyptic number.

16201340402 is a deficient number, since it is larger than the sum of its proper divisors (9970055674).

16201340402 is a wasteful number, since it uses less digits than its factorization.

16201340402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623128492.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 16201340402 its reverse (20404310261), we get a palindrome (36605650663).

The spelling of 16201340402 in words is "sixteen billion, two hundred one million, three hundred forty thousand, four hundred two".