101665521202 has 64 divisors (see below), whose sum is σ = 181630844928. Its totient is φ = 41762952000.

The previous prime is 101665521163. The next prime is 101665521227. The reversal of 101665521202 is 202125566101.

It is a super-3 number, since 3×101665521202³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21998452 + ... + 22003072.

It is an arithmetic number, because the mean of its divisors is an integer number (2837981952).

Almost surely, 2^101665521202 is an apocalyptic number.

101665521202 is a deficient number, since it is larger than the sum of its proper divisors (79965323726).

101665521202 is a wasteful number, since it uses less digits than its factorization.

101665521202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 101665521202 in words is "one hundred one billion, six hundred sixty-five million, five hundred twenty-one thousand, two hundred two".