10101001010556 has 48 divisors (see below), whose sum is σ = 24520862105600. Its totient is φ = 3232730813760.

The previous prime is 10101001010549. The next prime is 10101001010591. The reversal of 10101001010556 is 65501010010101.

It is a happy number.

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, 106855231 + ... + 106949718.

Almost surely, 2^{10101001010556} is an apocalyptic number.

It is an amenable number.

10101001010556 is an abundant number, since it is smaller than the sum of its proper divisors (14419861095044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10101001010556 is a wasteful number, since it uses less digits than its factorization.

10101001010556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213805114 (or 213805112 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 10101001010556 its reverse (65501010010101), we get a palindrome (75602011020657).

The spelling of 10101001010556 in words is "ten trillion, one hundred one billion, one million, ten thousand, five hundred fifty-six".