72030672181061 has 16 divisors (see below), whose sum is σ = 78743193318720. Its totient is φ = 65345563105920.

The previous prime is 72030672181019. The next prime is 72030672181109. The reversal of 72030672181061 is 16018127603027.

It is a cyclic number.

It is not a de Polignac number, because 72030672181061 - 2¹⁴ = 72030672164677 is a prime.

It is a super-3 number, since 3×72030672181061³ (a number of 43 digits) contains 333 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 (72030672181361) 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, 43948046 + ... + 45557568.

It is an arithmetic number, because the mean of its divisors is an integer number (4921449582420).

Almost surely, 2^{72030672181061} is an apocalyptic number.

It is an amenable number.

72030672181061 is a deficient number, since it is larger than the sum of its proper divisors (6712521137659).

72030672181061 is a wasteful number, since it uses less digits than its factorization.

72030672181061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618036.

The product of its (nonzero) digits is 169344, while the sum is 44.

Adding to 72030672181061 its reverse (16018127603027), we get a palindrome (88048799784088).

The spelling of 72030672181061 in words is "seventy-two trillion, thirty billion, six hundred seventy-two million, one hundred eighty-one thousand, sixty-one".