100245665542 has 32 divisors (see below), whose sum is σ = 166386765600. Its totient is φ = 44917824000.

The previous prime is 100245665519. The next prime is 100245665561. The reversal of 100245665542 is 245566542001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100245665495 and 100245665504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410334 + ... + 607342.

It is an arithmetic number, because the mean of its divisors is an integer number (5199586425).

Almost surely, 2^100245665542 is an apocalyptic number.

100245665542 is a deficient number, since it is larger than the sum of its proper divisors (66141100058).

100245665542 is a wasteful number, since it uses less digits than its factorization.

100245665542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197352.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 100245665542 in words is "one hundred billion, two hundred forty-five million, six hundred sixty-five thousand, five hundred forty-two".