102406022642 has 16 divisors (see below), whose sum is σ = 191512562112. Its totient is φ = 39898450320.

The previous prime is 102406022627. The next prime is 102406022647. The reversal of 102406022642 is 246220604201.

It is not an unprimeable number, because it can be changed into a prime (102406022647) 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, 332486933 + ... + 332487240.

It is an arithmetic number, because the mean of its divisors is an integer number (11969535132).

Almost surely, 2^102406022642 is an apocalyptic number.

102406022642 is a deficient number, since it is larger than the sum of its proper divisors (89106539470).

102406022642 is a wasteful number, since it uses less digits than its factorization.

102406022642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664974193.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 102406022642 its reverse (246220604201), we get a palindrome (348626626843).

The spelling of 102406022642 in words is "one hundred two billion, four hundred six million, twenty-two thousand, six hundred forty-two".