1202142336646 has 4 divisors (see below), whose sum is σ = 1803213504972. Its totient is φ = 601071168322.

The previous prime is 1202142336623. The next prime is 1202142336671. The reversal of 1202142336646 is 6466332412021.

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

It is a super-3 number, since 3×1202142336646³ (a number of 37 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1202142336599 and 1202142336608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300535584160 + ... + 300535584163.

It is an arithmetic number, because the mean of its divisors is an integer number (450803376243).

Almost surely, 2^{1202142336646} is an apocalyptic number.

1202142336646 is a deficient number, since it is larger than the sum of its proper divisors (601071168326).

1202142336646 is an equidigital number, since it uses as much as digits as its factorization.

1202142336646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601071168325.

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 1202142336646 its reverse (6466332412021), we get a palindrome (7668474748667).

The spelling of 1202142336646 in words is "one trillion, two hundred two billion, one hundred forty-two million, three hundred thirty-six thousand, six hundred forty-six".