1211665150007 has 8 divisors (see below), whose sum is σ = 1310721600384. Its totient is φ = 1113444619488.

The previous prime is 1211665150001. The next prime is 1211665150043. The reversal of 1211665150007 is 7000515661121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211665150007 - 2⁴ = 1211665149991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211665150001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208976948 + ... + 208982745.

It is an arithmetic number, because the mean of its divisors is an integer number (163840200048).

Almost surely, 2^{1211665150007} is an apocalyptic number.

1211665150007 is a deficient number, since it is larger than the sum of its proper divisors (99056450377).

1211665150007 is a wasteful number, since it uses less digits than its factorization.

1211665150007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417959929.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 1211665150007 in words is "one trillion, two hundred eleven billion, six hundred sixty-five million, one hundred fifty thousand, seven".