6156205101 has 6 divisors (see below), whose sum is σ = 8892296270. Its totient is φ = 4104136728.

The previous prime is 6156205079. The next prime is 6156205103. The reversal of 6156205101 is 1015026516.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5212118025 + 944087076 = 72195^2 + 30726^2 .

It is not a de Polignac number, because 6156205101 - 2¹⁰ = 6156204077 is a prime.

It is a super-2 number, since 2×6156205101² = 75797722491156840402, which 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 (6156205103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342011386 + ... + 342011403.

Almost surely, 2^6156205101 is an apocalyptic number.

It is an amenable number.

6156205101 is a deficient number, since it is larger than the sum of its proper divisors (2736091169).

6156205101 is a wasteful number, since it uses less digits than its factorization.

6156205101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684022795 (or 684022792 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 6156205101 is about 78461.4880116354. The cubic root of 6156205101 is about 1832.7547769521.

The spelling of 6156205101 in words is "six billion, one hundred fifty-six million, two hundred five thousand, one hundred one".