501105051061 has 16 divisors (see below), whose sum is σ = 505993962240. Its totient is φ = 496243722240.

The previous prime is 501105051043. The next prime is 501105051103. The reversal of 501105051061 is 160150501105.

It is a cyclic number.

It is not a de Polignac number, because 501105051061 - 2²¹ = 501102953909 is a prime.

It is a super-2 number, since 2×501105051061² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501105051011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44509345 + ... + 44520601.

It is an arithmetic number, because the mean of its divisors is an integer number (31624622640).

Almost surely, 2^501105051061 is an apocalyptic number.

It is an amenable number.

501105051061 is a deficient number, since it is larger than the sum of its proper divisors (4888911179).

501105051061 is a wasteful number, since it uses less digits than its factorization.

501105051061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12444.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 501105051061 its reverse (160150501105), we get a palindrome (661255552166).

The spelling of 501105051061 in words is "five hundred one billion, one hundred five million, fifty-one thousand, sixty-one".